3:12 What is sound 4:15 Wave motion 6:39 Vibrational motion 9:03 Particle vs wave motion 9:25 Types of waves : mechanical and non mechanical 11:07 Longitudinal and transverse 12:43 Production of sound 15:34 Propagation of sound 29:43 Sound needs a medium to travel 31:10 Continue Propagation of sound 34:20 General characteristics of Wave : Wavelength 36:54 Frequency 39:32 Time period 40:55 Amplitude 42:48 General characteristics of wave : Pitch 43:27 Loudness 43:45 Intensity 44:34 Timber 45:21 Tone and note 50:03 Relation between time period and frequency 50:56 What is the speed of sound 54:53 Reflection of sound 55:59 Echo and Reverberation 01:04:36 Ex 12.2 01:04:47 Uses of Reflection 01:05:41 Range of hearing : Infrasound and Ultrasound 01:09:07 Application of ultrasound 01:09:44 Question 01:10:39 One min revision 01:10:55 The end..... Edit: Thanks for 2k likes❤ Next Target like: 2.5k😅 Edit: Sab apne exam phod Dena😉
🎯 Key Takeaways for quick navigation: 00:18 🎶 *Sound is crucial; understanding its basics is essential for this chapter.* 02:18 📚 *Some details are omitted in this explanation for simplicity, ensuring the core concepts are understood.* 03:31 💡 *Sound is a form of energy that produces sensation in hearing; understanding its nature is vital.* 04:26 🌊 *Sound is a type of wave motion, different from particle motion, and understanding these distinctions is key.* 05:08 🔍 *Three types of motion are discussed: translational, rotational, and vibrational.* 05:23 🔄 *Vibrations and oscillations are crucial concepts in wave motion.* 06:35 🗣️ *Sound is essentially a form of vibration, where particles oscillate but do not displace significantly.* 07:31 🔊 *Sound is produced when objects collide, causing vibrations to propagate.* 08:16 📈 *Vibrations or wave motion progress through collisions, propagating further with each collision.* 08:46 🔊 *Particle motion and vibration energy transfer explanation.* 09:29 🌊 *Explanation of wave motion and types of waves.* 09:55 🔍 *Explanation of mechanical and non-mechanical waves and the role of medium.* 11:08 🌐 *Introduction to longitudinal wave transfer.* 11:51 ⬅️ *Understanding of wave vibration direction and propagation.* 13:47 🔊 *Vibrations resulting from collision lead to sound production, demonstrating the essential role of collision in creating sound.* 14:15 🔊 *Wave energy is produced through vibrations, illustrating the connection between vibrations and wave energy.* 15:23 🔊 *Sound production requires collision, emphasizing the necessity of collision for sound production to occur.* 16:05 🗣️ *Sound can travel through various mediums such as air, solid, liquid, or gas.* 16:32 🎚️ *Sound requires a medium for transmission, which could be solid, liquid, or gas.* 17:00 🔊 *Understanding the concept of medium in sound transmission is crucial, whether it's solid, liquid, or gas.* 17:43 🎙️ *The source of sound determines where sound originates, with particles vibrating and transmitting energy.* 18:36 🚗 *Sound propagation concepts lay the foundation for more complex topics in sound physics.* 19:32 🔊 *Sound travels through compression and rarefaction of particles in a medium.* 20:00 🔄 *Compression refers to particles being pushed closer together, while rarefaction is when they spread apart.* 20:45 🤔 *Compression and rarefaction are essential for sound waves to propagate.* 23:19 ⚡ *Collision between particles illustrates compression and subsequent rarefaction, crucial for sound transmission.* 24:42 📈 *Pressure variations in sound waves affect particle distribution.* 25:09 🎯 *Sound production involves compression followed by rarefaction.* 26:20 📊 *Graphing sound waves involves plotting compression and rarefaction.* 29:07 📉 *Graphs are drawn to represent compression and rarefaction in sound waves, aiding visualization of the wave's behavior.* 30:28 🔇 *Creating a vacuum inside a jar eliminates air particles, resulting in silence, demonstrating the necessity of a medium for sound transmission.* 30:58 🔊 *Sound travels faster in denser mediums due to particles being closer together.* 31:11 🌊 *Sound travels through different mediums by causing vibration in particles.* 31:37 ⚡ *Energy transfer occurs more efficiently when particles are closely packed.* 32:07 🌀 *Sound speed varies in different mediums due to particle spacing.* 32:34 🌐 *Characteristics of sound waves include wavelength, frequency, time period, and amplitude.* 33:30 📐 *Pressure and density change as sound waves propagate, affecting their characteristics.* 33:58 ⬆️ *Crest represents high pressure while trough represents low pressure in sound waves.* 34:13 📉 *Sound wave graphs depict pressure variation over time, showing crest, trough, and average density.* 34:39 🔍 *The distance between two crests or two troughs in a wave is called wavelength, measured in meters.* 36:01 📏 *The representation of wavelength using lambda (λ) symbol is the distance between two consecutive similar points in a wave.* 37:11 🔄 *Frequency refers to how often a phenomenon occurs within a given time frame, analogous to the number of occurrences per unit time.* 38:23 ⏰ *The frequency of waves determines how quickly they repeat within a given time frame, influencing their characteristics such as crest and trough occurrence.* 38:37 🎤 *Frequency is represented by the term "new," which corresponds to Hertz, indicating higher frequency means more oscillations.* 39:19 📐 *Understanding wavelength: longer wavelength means lower frequency, shorter wavelength means higher frequency.* 40:47 🌊 *Relationship between wavelength, time period, and frequency: longer wavelength or time period corresponds to lower frequency, shorter wavelength or time period corresponds to higher frequency.* 41:31 📏 *Amplitude relates to the extent of vibration from the rest position, where greater displacement means higher amplitude.* 42:21 🔊 *Wave properties like wavelength and amplitude affect sound intensity.* 44:10 🔉 *Adjusting amplitude affects loudness, with higher amplitude resulting in louder sounds.* 45:21 🔊 *Sounds with a single frequency are termed as "tone," while those with multiple frequencies are "timbre."* 47:04 🔊 *Loudness and frequency are independent characteristics of sound waves.* 47:45 🎶 *Changing frequency affects the pitch of sound, while changing amplitude affects the intensity of sound.* 48:17 🔊 *Intensity depends on amplitude, while loudness is subjective and varies from person to person.* 49:56 🔄 *Intensity is directly related to loudness, while frequency inversely relates to period.* 50:52 🎯 *Sound speed is calculated using the formula: Speed = Distance / Time.* 51:19 📏 *Wave length measures the distance between two crests or two troughs.* 53:32 🤔 *Speed of sound is independent of wavelength, frequency, and physical conditions under "normal" circumstances.* 54:41 🌊 *Sound travels faster through denser mediums like steel compared to less dense mediums like air.* 54:54 🔄 *Reflection of sound is similar to reflection of light and follows certain rules.* 55:23 🔍 *Understanding incident angle and reflection angle is crucial for understanding sound reflection.* 55:52 🔊 *Sound can reflect and propagate even when obstacles are present, leading to phenomena like reverberation.* 56:06 🗣️ *Echo and reverberation are two applications of sound reflection, with echo being immediate and reverberation being prolonged.* 56:45 🧠 *Our brain processes sound within 0.1 seconds, making it essential for clear sound reception.* 57:14 🛑 *Rapid succession of sounds within 0.1 seconds can hinder clear comprehension due to overlapping processing in the brain.* 57:52 🔄 *Differentiating between original sound and reflected sound helps in understanding sound clarity, with a 0.1-second interval between them being optimal.* 58:21 🔊 *Minimum condition for sound: To hear a sound distinctly, there should be a minimum difference of 0.1 second.* 58:36 📏 *Speed of sound: Calculated to be 344 meters per second in air.* 59:33 📏 *Distance calculation: Utilizing simple mathematical formulas to calculate distances based on known speeds and time requirements.* 01:00:02 🗣️ *Sound reflection: Calculating the minimum distance for sound to reflect back, ensuring clarity in transmission.* 01:00:59 🔄 *Sound travel distance: Determining the total distance traveled by sound based on known speed and time.* 01:02:08 🎯 *Understanding the speed of sound is crucial; it indicates how fast sound returns after reflection.* 01:02:46 💡 *Calculating minimum distance for sound reflection is vital for proper understanding and application.* 01:03:30 🕒 *Calculation of time taken for sound to travel a certain distance involves simple formulas.* 01:04:00 📢 *Reflection and reverberation play crucial roles in sound perception and acoustics.* 01:05:12 🔊 *Understanding sound reflection is essential for realizing how sound travels and reaches our ears effectively.* 01:05:40 🔊 *The concept of hearing range (20 Hz to 20,000 Hz) is crucial in understanding the capabilities of the human ear.* 01:06:50 🎧 *The range of human hearing encompasses sounds with frequencies ranging from 20 Hz to 20,000 Hz, beyond which infrasonic and ultrasonic sounds cannot be perceived.* 01:08:00 🦕 *Infrasonic sounds, below 20 Hz, can be heard by some animals like dinosaurs, while ultrasonic sounds, above 20,000 Hz, may be audible to certain animals like dolphins.* 01:09:09 💡 *Ultrasound has various medical applications, including sonography for imaging internal body structures and detecting conditions like kidney stones.* 01:09:38 💊 *Ultrasound with high frequencies can be used to break kidney stones, offering a treatment option for such conditions.* 01:09:56 📏 *Understanding the relationship between speed, distance, and time is crucial, as speed equals distance upon time.* Made with HARPA AI
Newton 5 law state that exam is directly propotional to fear and stress in mind and inversely propotional to time taken to complete full syllabus in one night 🙃🙃
The introduction was everything to me when he said " Kyu sunni hoti hai aawaz" It was very funny😂😂😂 He just brings fun of studies even in a subject like history thanks a lot pranay bhaiya/sir ❤
Key Takeaways for quick navigation: 00:18 🎶 Sound is crucial; understanding its basics is essential for this chapter. 02:18 📚 Some details are omitted in this explanation for simplicity, ensuring the core concepts are understood. 03:31 💡 Sound is a form of energy that produces sensation in hearing; understanding its nature is vital. 04:26 🌊 Sound is a type of wave motion, different from particle motion, and understanding these distinctions is key. 05:08 🔍 Three types of motion are discussed: translational, rotational, and vibrational. 05:23 🔄 Vibrations and oscillations are crucial concepts in wave motion. 06:35 🗣 Sound is essentially a form of vibration, where particles oscillate but do not displace significantly. 07:31 🔊 Sound is produced when objects collide, causing vibrations to propagate. 08:16 📈 Vibrations or wave motion progress through collisions, propagating further with each collision. 08:46 🔊 Particle motion and vibration energy transfer explanation. 09:29 🌊 Explanation of wave motion and types of waves. 09:55 🔍 Explanation of mechanical and non-mechanical waves and the role of medium. 11:08 🌐 Introduction to longitudinal wave transfer. 11:51 ⬅ Understanding of wave vibration direction and propagation. 13:47 🔊 Vibrations resulting from collision lead to sound production, demonstrating the essential role of collision in creating sound. 14:15 🔊 Wave energy is produced through vibrations, illustrating the connection between vibrations and wave energy. 15:23 🔊 Sound production requires collision, emphasizing the necessity of collision for sound production to occur. 16:05 🗣 Sound can travel through various mediums such as air, solid, liquid, or gas. 16:32 🎚 Sound requires a medium for transmission, which could be solid, liquid, or gas. 17:00 🔊 Understanding the concept of medium in sound transmission is crucial, whether it's solid, liquid, or gas. 17:43 🎙 The source of sound determines where sound originates, with particles vibrating and transmitting energy. 18:36 🚗 Sound propagation concepts lay the foundation for more complex topics in sound physics. 19:32 🔊 Sound travels through compression and rarefaction of particles in a medium. 20:00 🔄 Compression refers to particles being pushed closer together, while rarefaction is when they spread apart. 20:45 🤔 Compression and rarefaction are essential for sound waves to propagate. 23:19 ⚡ Collision between particles illustrates compression and subsequent rarefaction, crucial for sound transmission. 24:42 📈 Pressure variations in sound waves affect particle distribution. 25:09 🎯 Sound production involves compression followed by rarefaction. 26:20 📊 Graphing sound waves involves plotting compression and rarefaction. 29:07 📉 Graphs are drawn to represent compression and rarefaction in sound waves, aiding visualization of the wave's behavior. 30:28 🔇 Creating a vacuum inside a jar eliminates air particles, resulting in silence, demonstrating the necessity of a medium for sound transmission. 30:58 🔊 Sound travels faster in denser mediums due to particles being closer together. 31:11 🌊 Sound travels through different mediums by causing vibration in particles. 31:37 ⚡ Energy transfer occurs more efficiently when particles are closely packed. 32:07 🌀 Sound speed varies in different mediums due to particle spacing. 32:34 🌐 Characteristics of sound waves include wavelength, frequency, time period, and amplitude. 33:30 📐 Pressure and density change as sound waves propagate, affecting their characteristics. 33:58 ⬆ Crest represents high pressure while trough represents low pressure in sound waves. 34:13 📉 Sound wave graphs depict pressure variation over time, showing crest, trough, and average density. 34:39 🔍 The distance between two crests or two troughs in a wave is called wavelength, measured in meters. 36:01 📏 The representation of wavelength using lambda (λ) symbol is the distance between two consecutive similar points in a wave. 37:11 🔄 Frequency refers to how often a phenomenon occurs within a given time frame, analogous to the number of occurrences per unit time. 38:23 ⏰ The frequency of waves determines how quickly they repeat within a given time frame, influencing their characteristics such as crest and trough occurrence. 38:37 🎤 Frequency is represented by the term "new," which corresponds to Hertz, indicating higher frequency means more oscillations. 39:19 📐 Understanding wavelength: longer wavelength means lower frequency, shorter wavelength means higher frequency. 40:47 🌊 Relationship between wavelength, time period, and frequency: longer wavelength or time period corresponds to lower frequency, shorter wavelength or time period corresponds to higher frequency. 41:31 📏 Amplitude relates to the extent of vibration from the rest position, where greater displacement means higher amplitude. 42:21 🔊 Wave properties like wavelength and amplitude affect sound intensity. 44:10 🔉 Adjusting amplitude affects loudness, with higher amplitude resulting in louder sounds. 45:21 🔊 Sounds with a single frequency are termed as "tone," while those with multiple frequencies are "timbre." 47:04 🔊 Loudness and frequency are independent characteristics of sound waves. 47:45 🎶 Changing frequency affects the pitch of sound, while changing amplitude affects the intensity of sound. 48:17 🔊 Intensity depends on amplitude, while loudness is subjective and varies from person to person. 49:56 🔄 Intensity is directly related to loudness, while frequency inversely relates to period. 50:52 🎯 Sound speed is calculated using the formula: Speed = Distance / Time. 51:19 📏 Wave length measures the distance between two crests or two troughs. 53:32 🤔 Speed of sound is independent of wavelength, frequency, and physical conditions under "normal" circumstances. 54:41 🌊 Sound travels faster through denser mediums like steel compared to less dense mediums like air. 54:54 🔄 Reflection of sound is similar to reflection of light and follows certain rules. 55:23 🔍 Understanding incident angle and reflection angle is crucial for understanding sound reflection. 55:52 🔊 Sound can reflect and propagate even when obstacles are present, leading to phenomena like reverberation. 56:06 🗣 Echo and reverberation are two applications of sound reflection, with echo being immediate and reverberation being prolonged. 56:45 🧠 Our brain processes sound within 0.1 seconds, making it essential for clear sound reception. 57:14 🛑 Rapid succession of sounds within 0.1 seconds can hinder clear comprehension due to overlapping processing in the brain. 57:52 🔄 Differentiating between original sound and reflected sound helps in understanding sound clarity, with a 0.1-second interval between them being optimal. 58:21 🔊 Minimum condition for sound: To hear a sound distinctly, there should be a minimum difference of 0.1 second. 58:36 📏 Speed of sound: Calculated to be 344 meters per second in air. 59:33 📏 Distance calculation: Utilizing simple mathematical formulas to calculate distances based on known speeds and time requirements. 01:00:02 🗣 Sound reflection: Calculating the minimum distance for sound to reflect back, ensuring clarity in transmission. 01:00:59 🔄 Sound travel distance: Determining the total distance traveled by sound based on known speed and time. 01:02:08 🎯 Understanding the speed of sound is crucial; it indicates how fast sound returns after reflection. 01:02:46 💡 Calculating minimum distance for sound reflection is vital for proper understanding and application. 01:03:30 🕒 Calculation of time taken for sound to travel a certain distance involves simple formulas. 01:04:00 📢 Reflection and reverberation play crucial roles in sound perception and acoustics. 01:05:12 🔊 Understanding sound reflection is essential for realizing how sound travels and reaches our ears effectively. 01:05:40 🔊 The concept of hearing range (20 Hz to 20,000 Hz) is crucial in understanding the capabilities of the human ear. 01:06:50 🎧 The range of human hearing encompasses sounds with frequencies ranging from 20 Hz to 20,000 Hz, beyond which infrasonic and ultrasonic sounds cannot be perceived. 01:08:00 🦕 Infrasonic sounds, below 20 Hz, can be heard by some animals like dinosaurs, while ultrasonic sounds, above 20,000 Hz, may be audible to certain animals like dolphins. 01:09:09 💡 Ultrasound has various medical applications, including sonography for imaging internal body structures and detecting conditions like kidney stones. 01:09:38 💊 Ultrasound with high frequencies can be used to break kidney stones, offering a treatment option for such conditions. 01:09:56 📏 Understanding the relationship between speed, distance, and time is crucial, as speed equals distance upon time.
TECHY YT 1 year ago (edited) 3:12 What is sound 4:15 Wave motion 6:39 Vibrational motion 9:03 Particle vs wave motion 9:25 Types of waves : mechanical and non mechanical 11:07 Longitudinal and transverse 12:43 Production of sound 15:34 Propagation of sound 29:43 Sound needs a medium to travel 31:10 Continue Propagation of sound 34:20 General characteristics of Wave : Wavelength 36:54 Frequency 39:32 Time period 40:55 Amplitude 42:48 General characteristics of wave : Pitch 43:27 Loudness 43:45 Intensity 44:34 Timber 45:21 Tone and note 50:03 Relation between time period and frequency 50:56 What is the speed of sound 54:53 Reflection of sound 55:59 Echo and Reverberation 01:04:36 Ex 12.2 01:04:47 Uses of Reflection 01:05:41 Range of hearing : Infrasound and Ultrasound 01:09:07 Application of ultrasound 01:09:44 Question 01:10:39 One min revision 01:10:55 Thank You Bachoo 😍😍 Edit: Thanks for 2k likes❤ Next Target like: 3.9😅 Edit: Sab apne exam phod Dena😉
You were my best discovery pranay bhaiya🤧💖 and after discovering you i understood that nothing is actually boring its just the way of teaching and understanding ...✨
Thank u bhaiya for this awesome lecture. I completed almost whole syllabus from you and your team. This is the best lecture on youtube and funny too😆. Congrats to Just Padhle for being the best channel for class 9th. May u hit a million subscribers soon.Thanks a lot❤❤
Pranay bhaiya you're the best, we really needed this type of lectures it's really helpful for a revision before exams..hope we'll get teachers like you in our life ahead ❤️
20 days left for finals Thank God i found this channel...i used to search for one shot lectures so that I can prep in short period of tym and this is the best channel for my last min prep...thanku so much bhaiya🔥
The way you played guitar bhaiyaaa is awesomeeeeee ❤️❤️❤️❤️❤️❤️❤️ and thank you so much for for this video I was waiting since long time for this.. and finallyyy❤️❤️🥺
Thank you so much bhaiya for this wonderful video 🥰☺️and I was shocked when you play ukulele but I can relate this cuz I play piano. Bhaiya tomorrow is my exam and this video was perfect for me and all the students who are watching before exams. Once again thank a lot bro ♥️🥰☺️
Aapke sare chapters science ke explain kiye hue mene dekh liye and today i am watching your last video and my syllabus will be finished...i will always prefer your videos for quick revision thank you for everything sir...I literally Lived class 9 with you💗
Newton 5th law state that the exam is directly proportional to fear and stress in mind and inversely proportional to time taken to complete full syllabus in one night 🙃
THANK YOU SOO MUCH PRANAY BHAIYAAAA I WAS SOOO TENSED FOR THIS CH!!!! THERE WAS NO PROPER VIDEO FOR THIS SOUND CH THAT SATISFIED ME!! 🥲ACTUALLY INITALLY LOST HOPE AS SOON AS I FOUND OUT JUST PADHLE DOESNT HAVE A LECTURE FOR THIS CH, I WAS MENTALLY PREPARING MYSELF TO FAIL IN THIS CH😰😂😂
Defination of wave - when an energy is displaced from the source to the receiver but here neither the sorce and not the receiver moves it travels through the mediums and while traveling through the medium it causes some disturbtions and this disturbions are called waves Thank me later
Sir your explanation is just wow💕I usually do not understand physics but after seeing this video mine all concepts of this chapter is clear ... thankuhhh so much😊
Pranay bhaiya i was scared by listening these complex words in my school but after watching the lecture these terms are so fuddu to me 🤩 Thanks bhaiya! 😇
SIR YOU ARE A LIFE SAVOR, i have an exam tomorrow which in which this chapter is also included and i was struggling with it now i can finally understand it, thank you bro
I was continuously laughing so much that my mother thought i was watching videos instead of studying... When she came to scold me she saw this and then started to ask about the channel and then herself started watching the video with me and laughing 😂
Kaisi lagi aavaz ki aavaz, meri aavaz mein? 😍
Maja aaya aur yahi maja mein apne har dost ko dena chahta hun
Your are very close 400k
Gjb ki 👍
Very nice And good advisor
Ek number gazab ki aavaz
3:12 What is sound
4:15 Wave motion
6:39 Vibrational motion
9:03 Particle vs wave motion
9:25 Types of waves : mechanical and non mechanical
11:07 Longitudinal and transverse
12:43 Production of sound
15:34 Propagation of sound
29:43 Sound needs a medium to travel
31:10 Continue Propagation of sound
34:20 General characteristics of Wave : Wavelength
36:54 Frequency
39:32 Time period
40:55 Amplitude
42:48 General characteristics of wave : Pitch
43:27 Loudness
43:45 Intensity
44:34 Timber
45:21 Tone and note
50:03 Relation between time period and frequency
50:56 What is the speed of sound
54:53 Reflection of sound
55:59 Echo and Reverberation
01:04:36 Ex 12.2
01:04:47 Uses of Reflection
01:05:41 Range of hearing : Infrasound and Ultrasound
01:09:07 Application of ultrasound
01:09:44 Question
01:10:39 One min revision
01:10:55 The end.....
Edit: Thanks for 2k likes❤
Next Target like: 2.5k😅
Edit: Sab apne exam phod Dena😉
Nice ☺️
thznks
Thanks
Thank you bro ❤
you are the god's man
🎯 Key Takeaways for quick navigation:
00:18 🎶 *Sound is crucial; understanding its basics is essential for this chapter.*
02:18 📚 *Some details are omitted in this explanation for simplicity, ensuring the core concepts are understood.*
03:31 💡 *Sound is a form of energy that produces sensation in hearing; understanding its nature is vital.*
04:26 🌊 *Sound is a type of wave motion, different from particle motion, and understanding these distinctions is key.*
05:08 🔍 *Three types of motion are discussed: translational, rotational, and vibrational.*
05:23 🔄 *Vibrations and oscillations are crucial concepts in wave motion.*
06:35 🗣️ *Sound is essentially a form of vibration, where particles oscillate but do not displace significantly.*
07:31 🔊 *Sound is produced when objects collide, causing vibrations to propagate.*
08:16 📈 *Vibrations or wave motion progress through collisions, propagating further with each collision.*
08:46 🔊 *Particle motion and vibration energy transfer explanation.*
09:29 🌊 *Explanation of wave motion and types of waves.*
09:55 🔍 *Explanation of mechanical and non-mechanical waves and the role of medium.*
11:08 🌐 *Introduction to longitudinal wave transfer.*
11:51 ⬅️ *Understanding of wave vibration direction and propagation.*
13:47 🔊 *Vibrations resulting from collision lead to sound production, demonstrating the essential role of collision in creating sound.*
14:15 🔊 *Wave energy is produced through vibrations, illustrating the connection between vibrations and wave energy.*
15:23 🔊 *Sound production requires collision, emphasizing the necessity of collision for sound production to occur.*
16:05 🗣️ *Sound can travel through various mediums such as air, solid, liquid, or gas.*
16:32 🎚️ *Sound requires a medium for transmission, which could be solid, liquid, or gas.*
17:00 🔊 *Understanding the concept of medium in sound transmission is crucial, whether it's solid, liquid, or gas.*
17:43 🎙️ *The source of sound determines where sound originates, with particles vibrating and transmitting energy.*
18:36 🚗 *Sound propagation concepts lay the foundation for more complex topics in sound physics.*
19:32 🔊 *Sound travels through compression and rarefaction of particles in a medium.*
20:00 🔄 *Compression refers to particles being pushed closer together, while rarefaction is when they spread apart.*
20:45 🤔 *Compression and rarefaction are essential for sound waves to propagate.*
23:19 ⚡ *Collision between particles illustrates compression and subsequent rarefaction, crucial for sound transmission.*
24:42 📈 *Pressure variations in sound waves affect particle distribution.*
25:09 🎯 *Sound production involves compression followed by rarefaction.*
26:20 📊 *Graphing sound waves involves plotting compression and rarefaction.*
29:07 📉 *Graphs are drawn to represent compression and rarefaction in sound waves, aiding visualization of the wave's behavior.*
30:28 🔇 *Creating a vacuum inside a jar eliminates air particles, resulting in silence, demonstrating the necessity of a medium for sound transmission.*
30:58 🔊 *Sound travels faster in denser mediums due to particles being closer together.*
31:11 🌊 *Sound travels through different mediums by causing vibration in particles.*
31:37 ⚡ *Energy transfer occurs more efficiently when particles are closely packed.*
32:07 🌀 *Sound speed varies in different mediums due to particle spacing.*
32:34 🌐 *Characteristics of sound waves include wavelength, frequency, time period, and amplitude.*
33:30 📐 *Pressure and density change as sound waves propagate, affecting their characteristics.*
33:58 ⬆️ *Crest represents high pressure while trough represents low pressure in sound waves.*
34:13 📉 *Sound wave graphs depict pressure variation over time, showing crest, trough, and average density.*
34:39 🔍 *The distance between two crests or two troughs in a wave is called wavelength, measured in meters.*
36:01 📏 *The representation of wavelength using lambda (λ) symbol is the distance between two consecutive similar points in a wave.*
37:11 🔄 *Frequency refers to how often a phenomenon occurs within a given time frame, analogous to the number of occurrences per unit time.*
38:23 ⏰ *The frequency of waves determines how quickly they repeat within a given time frame, influencing their characteristics such as crest and trough occurrence.*
38:37 🎤 *Frequency is represented by the term "new," which corresponds to Hertz, indicating higher frequency means more oscillations.*
39:19 📐 *Understanding wavelength: longer wavelength means lower frequency, shorter wavelength means higher frequency.*
40:47 🌊 *Relationship between wavelength, time period, and frequency: longer wavelength or time period corresponds to lower frequency, shorter wavelength or time period corresponds to higher frequency.*
41:31 📏 *Amplitude relates to the extent of vibration from the rest position, where greater displacement means higher amplitude.*
42:21 🔊 *Wave properties like wavelength and amplitude affect sound intensity.*
44:10 🔉 *Adjusting amplitude affects loudness, with higher amplitude resulting in louder sounds.*
45:21 🔊 *Sounds with a single frequency are termed as "tone," while those with multiple frequencies are "timbre."*
47:04 🔊 *Loudness and frequency are independent characteristics of sound waves.*
47:45 🎶 *Changing frequency affects the pitch of sound, while changing amplitude affects the intensity of sound.*
48:17 🔊 *Intensity depends on amplitude, while loudness is subjective and varies from person to person.*
49:56 🔄 *Intensity is directly related to loudness, while frequency inversely relates to period.*
50:52 🎯 *Sound speed is calculated using the formula: Speed = Distance / Time.*
51:19 📏 *Wave length measures the distance between two crests or two troughs.*
53:32 🤔 *Speed of sound is independent of wavelength, frequency, and physical conditions under "normal" circumstances.*
54:41 🌊 *Sound travels faster through denser mediums like steel compared to less dense mediums like air.*
54:54 🔄 *Reflection of sound is similar to reflection of light and follows certain rules.*
55:23 🔍 *Understanding incident angle and reflection angle is crucial for understanding sound reflection.*
55:52 🔊 *Sound can reflect and propagate even when obstacles are present, leading to phenomena like reverberation.*
56:06 🗣️ *Echo and reverberation are two applications of sound reflection, with echo being immediate and reverberation being prolonged.*
56:45 🧠 *Our brain processes sound within 0.1 seconds, making it essential for clear sound reception.*
57:14 🛑 *Rapid succession of sounds within 0.1 seconds can hinder clear comprehension due to overlapping processing in the brain.*
57:52 🔄 *Differentiating between original sound and reflected sound helps in understanding sound clarity, with a 0.1-second interval between them being optimal.*
58:21 🔊 *Minimum condition for sound: To hear a sound distinctly, there should be a minimum difference of 0.1 second.*
58:36 📏 *Speed of sound: Calculated to be 344 meters per second in air.*
59:33 📏 *Distance calculation: Utilizing simple mathematical formulas to calculate distances based on known speeds and time requirements.*
01:00:02 🗣️ *Sound reflection: Calculating the minimum distance for sound to reflect back, ensuring clarity in transmission.*
01:00:59 🔄 *Sound travel distance: Determining the total distance traveled by sound based on known speed and time.*
01:02:08 🎯 *Understanding the speed of sound is crucial; it indicates how fast sound returns after reflection.*
01:02:46 💡 *Calculating minimum distance for sound reflection is vital for proper understanding and application.*
01:03:30 🕒 *Calculation of time taken for sound to travel a certain distance involves simple formulas.*
01:04:00 📢 *Reflection and reverberation play crucial roles in sound perception and acoustics.*
01:05:12 🔊 *Understanding sound reflection is essential for realizing how sound travels and reaches our ears effectively.*
01:05:40 🔊 *The concept of hearing range (20 Hz to 20,000 Hz) is crucial in understanding the capabilities of the human ear.*
01:06:50 🎧 *The range of human hearing encompasses sounds with frequencies ranging from 20 Hz to 20,000 Hz, beyond which infrasonic and ultrasonic sounds cannot be perceived.*
01:08:00 🦕 *Infrasonic sounds, below 20 Hz, can be heard by some animals like dinosaurs, while ultrasonic sounds, above 20,000 Hz, may be audible to certain animals like dolphins.*
01:09:09 💡 *Ultrasound has various medical applications, including sonography for imaging internal body structures and detecting conditions like kidney stones.*
01:09:38 💊 *Ultrasound with high frequencies can be used to break kidney stones, offering a treatment option for such conditions.*
01:09:56 📏 *Understanding the relationship between speed, distance, and time is crucial, as speed equals distance upon time.*
Made with HARPA AI
Itna notes maine pure chapter me nhi banaya
@@Darkzshadowxz AI se meine banaaye hein Bhai ghanta kuch kar meine
@@i_reversal9329 ha wo Maine padha lekin mai bas bata rha tha
Thankyou!!!
Thanks😊😊😊😊😊😊
EXAMS ARE NEAR
NOTHING IS CLEAR
BUT NO NEED TO FEAR
PRANAY BHAIYA IS HERE
Short be ❤❤
Wahawa wahawa
👀
🔥🔥🔥
@@firegamerz819Hy
Newton 5 law state that exam is directly propotional to fear and stress in mind and inversely propotional to time taken to complete full syllabus in one night 🙃🙃
The introduction was everything to me when he said " Kyu sunni hoti hai aawaz" It was very funny😂😂😂
He just brings fun of studies even in a subject like history thanks a lot pranay bhaiya/sir ❤
😊
Army ????
How many students 😮come in 2024😅 , 😂😂present lagbaa lo🤠
👇👇👇,
Comment your Instagram id 🐹
Only channel where you get knowledge in a humorous way ❤️All thanks to Pranay bhaiya
Himanish never gives up !!
@@Abeer0509 imagine simping
@@hussain.am_ bro it is a meme for a boy named himanish who is in my class it goes like "himanish never gives up, mata ka jagrata smth"
@@Abeer0509 but the person you replied to is himanshi not himanish
@@Abeer0509 btw that's real good 😂
Key Takeaways for quick navigation:
00:18 🎶 Sound is crucial; understanding its basics is essential for this chapter.
02:18 📚 Some details are omitted in this explanation for simplicity, ensuring the core concepts are understood.
03:31 💡 Sound is a form of energy that produces sensation in hearing; understanding its nature is vital.
04:26 🌊 Sound is a type of wave motion, different from particle motion, and understanding these distinctions is key.
05:08 🔍 Three types of motion are discussed: translational, rotational, and vibrational.
05:23 🔄 Vibrations and oscillations are crucial concepts in wave motion.
06:35 🗣 Sound is essentially a form of vibration, where particles oscillate but do not displace significantly.
07:31 🔊 Sound is produced when objects collide, causing vibrations to propagate.
08:16 📈 Vibrations or wave motion progress through collisions, propagating further with each collision.
08:46 🔊 Particle motion and vibration energy transfer explanation.
09:29 🌊 Explanation of wave motion and types of waves.
09:55 🔍 Explanation of mechanical and non-mechanical waves and the role of medium.
11:08 🌐 Introduction to longitudinal wave transfer.
11:51 ⬅ Understanding of wave vibration direction and propagation.
13:47 🔊 Vibrations resulting from collision lead to sound production, demonstrating the essential role of collision in creating sound.
14:15 🔊 Wave energy is produced through vibrations, illustrating the connection between vibrations and wave energy.
15:23 🔊 Sound production requires collision, emphasizing the necessity of collision for sound production to occur.
16:05 🗣 Sound can travel through various mediums such as air, solid, liquid, or gas.
16:32 🎚 Sound requires a medium for transmission, which could be solid, liquid, or gas.
17:00 🔊 Understanding the concept of medium in sound transmission is crucial, whether it's solid, liquid, or gas.
17:43 🎙 The source of sound determines where sound originates, with particles vibrating and transmitting energy.
18:36 🚗 Sound propagation concepts lay the foundation for more complex topics in sound physics.
19:32 🔊 Sound travels through compression and rarefaction of particles in a medium.
20:00 🔄 Compression refers to particles being pushed closer together, while rarefaction is when they spread apart.
20:45 🤔 Compression and rarefaction are essential for sound waves to propagate.
23:19 ⚡ Collision between particles illustrates compression and subsequent rarefaction, crucial for sound transmission.
24:42 📈 Pressure variations in sound waves affect particle distribution.
25:09 🎯 Sound production involves compression followed by rarefaction.
26:20 📊 Graphing sound waves involves plotting compression and rarefaction.
29:07 📉 Graphs are drawn to represent compression and rarefaction in sound waves, aiding visualization of the wave's behavior.
30:28 🔇 Creating a vacuum inside a jar eliminates air particles, resulting in silence, demonstrating the necessity of a medium for sound transmission.
30:58 🔊 Sound travels faster in denser mediums due to particles being closer together.
31:11 🌊 Sound travels through different mediums by causing vibration in particles.
31:37 ⚡ Energy transfer occurs more efficiently when particles are closely packed.
32:07 🌀 Sound speed varies in different mediums due to particle spacing.
32:34 🌐 Characteristics of sound waves include wavelength, frequency, time period, and amplitude.
33:30 📐 Pressure and density change as sound waves propagate, affecting their characteristics.
33:58 ⬆ Crest represents high pressure while trough represents low pressure in sound waves.
34:13 📉 Sound wave graphs depict pressure variation over time, showing crest, trough, and average density.
34:39 🔍 The distance between two crests or two troughs in a wave is called wavelength, measured in meters.
36:01 📏 The representation of wavelength using lambda (λ) symbol is the distance between two consecutive similar points in a wave.
37:11 🔄 Frequency refers to how often a phenomenon occurs within a given time frame, analogous to the number of occurrences per unit time.
38:23 ⏰ The frequency of waves determines how quickly they repeat within a given time frame, influencing their characteristics such as crest and trough occurrence.
38:37 🎤 Frequency is represented by the term "new," which corresponds to Hertz, indicating higher frequency means more oscillations.
39:19 📐 Understanding wavelength: longer wavelength means lower frequency, shorter wavelength means higher frequency.
40:47 🌊 Relationship between wavelength, time period, and frequency: longer wavelength or time period corresponds to lower frequency, shorter wavelength or time period corresponds to higher frequency.
41:31 📏 Amplitude relates to the extent of vibration from the rest position, where greater displacement means higher amplitude.
42:21 🔊 Wave properties like wavelength and amplitude affect sound intensity.
44:10 🔉 Adjusting amplitude affects loudness, with higher amplitude resulting in louder sounds.
45:21 🔊 Sounds with a single frequency are termed as "tone," while those with multiple frequencies are "timbre."
47:04 🔊 Loudness and frequency are independent characteristics of sound waves.
47:45 🎶 Changing frequency affects the pitch of sound, while changing amplitude affects the intensity of sound.
48:17 🔊 Intensity depends on amplitude, while loudness is subjective and varies from person to person.
49:56 🔄 Intensity is directly related to loudness, while frequency inversely relates to period.
50:52 🎯 Sound speed is calculated using the formula: Speed = Distance / Time.
51:19 📏 Wave length measures the distance between two crests or two troughs.
53:32 🤔 Speed of sound is independent of wavelength, frequency, and physical conditions under "normal" circumstances.
54:41 🌊 Sound travels faster through denser mediums like steel compared to less dense mediums like air.
54:54 🔄 Reflection of sound is similar to reflection of light and follows certain rules.
55:23 🔍 Understanding incident angle and reflection angle is crucial for understanding sound reflection.
55:52 🔊 Sound can reflect and propagate even when obstacles are present, leading to phenomena like reverberation.
56:06 🗣 Echo and reverberation are two applications of sound reflection, with echo being immediate and reverberation being prolonged.
56:45 🧠 Our brain processes sound within 0.1 seconds, making it essential for clear sound reception.
57:14 🛑 Rapid succession of sounds within 0.1 seconds can hinder clear comprehension due to overlapping processing in the brain.
57:52 🔄 Differentiating between original sound and reflected sound helps in understanding sound clarity, with a 0.1-second interval between them being optimal.
58:21 🔊 Minimum condition for sound: To hear a sound distinctly, there should be a minimum difference of 0.1 second.
58:36 📏 Speed of sound: Calculated to be 344 meters per second in air.
59:33 📏 Distance calculation: Utilizing simple mathematical formulas to calculate distances based on known speeds and time requirements.
01:00:02 🗣 Sound reflection: Calculating the minimum distance for sound to reflect back, ensuring clarity in transmission.
01:00:59 🔄 Sound travel distance: Determining the total distance traveled by sound based on known speed and time.
01:02:08 🎯 Understanding the speed of sound is crucial; it indicates how fast sound returns after reflection.
01:02:46 💡 Calculating minimum distance for sound reflection is vital for proper understanding and application.
01:03:30 🕒 Calculation of time taken for sound to travel a certain distance involves simple formulas.
01:04:00 📢 Reflection and reverberation play crucial roles in sound perception and acoustics.
01:05:12 🔊 Understanding sound reflection is essential for realizing how sound travels and reaches our ears effectively.
01:05:40 🔊 The concept of hearing range (20 Hz to 20,000 Hz) is crucial in understanding the capabilities of the human ear.
01:06:50 🎧 The range of human hearing encompasses sounds with frequencies ranging from 20 Hz to 20,000 Hz, beyond which infrasonic and ultrasonic sounds cannot be perceived.
01:08:00 🦕 Infrasonic sounds, below 20 Hz, can be heard by some animals like dinosaurs, while ultrasonic sounds, above 20,000 Hz, may be audible to certain animals like dolphins.
01:09:09 💡 Ultrasound has various medical applications, including sonography for imaging internal body structures and detecting conditions like kidney stones.
01:09:38 💊 Ultrasound with high frequencies can be used to break kidney stones, offering a treatment option for such conditions.
01:09:56 📏 Understanding the relationship between speed, distance, and time is crucial, as speed equals distance upon time.
Padhte kab ho 😂
Thanks
Tomorrow is my science exam and the sound chapter is coming
I am waiting for this chapter thank you so much bhaiya ❤️❤️❤️❤️
Woah! You got heart from pranay bhaiya. Awesome
Hello bro are u a ff player
I am just fascinated by your teaching and guitar playing skillss...
Crystal clear ho gye concept
😄😃
pranay bhaiya. best lecture on the channel..... u worked so hard for us just for us to score good in our exams. Thank you soooooo much!
TECHY YT
1 year ago (edited)
3:12 What is sound
4:15 Wave motion
6:39 Vibrational motion
9:03 Particle vs wave motion
9:25 Types of waves : mechanical and non mechanical
11:07 Longitudinal and transverse
12:43 Production of sound
15:34 Propagation of sound
29:43 Sound needs a medium to travel
31:10 Continue Propagation of sound
34:20 General characteristics of Wave : Wavelength
36:54 Frequency
39:32 Time period
40:55 Amplitude
42:48 General characteristics of wave : Pitch
43:27 Loudness
43:45 Intensity
44:34 Timber
45:21 Tone and note
50:03 Relation between time period and frequency
50:56 What is the speed of sound
54:53 Reflection of sound
55:59 Echo and Reverberation
01:04:36 Ex 12.2
01:04:47 Uses of Reflection
01:05:41 Range of hearing : Infrasound and Ultrasound
01:09:07 Application of ultrasound
01:09:44 Question
01:10:39 One min revision
01:10:55 Thank You Bachoo 😍😍
Edit: Thanks for 2k likes❤
Next Target like: 3.9😅
Edit: Sab apne exam phod Dena😉
Copy paste huh
Kis kis ne aumbulance ki aawaz suni😂😅😅
Tune suni hogi
Tumne bhai 😂😂😂
Everything is temporary But Gattu and Bittu is permanent😂
IKRRRR
noticed too
@@manasviverma16 😭👌🏻 lmao
@@mc_gaming_spot7469 yasss
Guys pls time tag kar do
😅😅😅
Tomorrow is my UT of science which includes the chapter sound and i got it just few seconds ago.......... Hats off to u *PRanay Bhaiyaa*
You were my best discovery pranay bhaiya🤧💖 and after discovering you i understood that nothing is actually boring its just the way of teaching and understanding ...✨
@@NazirAhmad-th4gs ??
41:38 can you hear that sound in background????
Comment below
Is it of..
Ambulance or polic ??
At 42:35 again that sound heared....!!
I scored 38/40 in my exam thank you bhaiya
congrats dude
Thank u bhaiya for this awesome lecture. I completed almost whole syllabus from you and your team. This is the best lecture on youtube and funny too😆. Congrats to Just Padhle for being the best channel for class 9th. May u hit a million subscribers soon.Thanks a lot❤❤
No one teaches like you bro. May God bless you! I have nothing but love, respect and prayers for you.. from the bottom of my heart
""Bro""?! 💀
Bro ? 😂😢
What's with the surprise? 😂😂I know that my comment is cheesy and cringy... but the guy was a saviour for me in 9th.@@rajivjain0974
america got talent bro got as
💀Wha-
THIS HELPS SOOOOOOOOO MUCH TO PPL WHO DONT UNDERSTAND THINGS AT SCHOOL, YOUR VIDS RLY DO HELP...THANKYOU!!!
Sound chapter meh jin logo ko ambulance ka sound sunai diya wo like kare😅
53:48 Mai kaise baat Karu 😂
Joking aside, I have never seen a teacher like you ,your sense of teaching is next level
Thanks For teaching us ❤
Tum baat hèe mat kro 💀
@@cubereleated8266yeah baat 😂😂
Kya baat hai😂
FINALLY THE MUCH AWAITED LECTURE!!!
the guitar parttttttttt ooof PRanay bhaiyaa really grtttt
😂😂
Waiting for this lecture from about 3 weeks ! Finally !!! Now I can say my science revision comes to an end 😅 Thanks Bhaiya!!!
1:00:00 time to take a break
Pranay bhaiya you're the best, we really needed this type of lectures it's really helpful for a revision before exams..hope we'll get teachers like you in our life ahead ❤️
8:22 that "aree meri jaan" was just😂🔥 ❤️❤️...u r the best teacher bhaiya.....thank u soo much for all your efforts 🥰
🤣🤣
😂😂👌🏻👌🏻
@@monika_o_o 😂😂
@@dayaram9192 😂😂
😂😂
To all the grade 9 appearing final exams on 2023 i wish u all the best of luck🖤💫
20 days left for finals
Thank God i found this channel...i used to search for one shot lectures so that I can prep in short period of tym and this is the best channel for my last min prep...thanku so much bhaiya🔥
me toooooo are you in dav
Hmare to 13 se hai 😞
@@sanjayjio1972 Matlab Kal sai? Mere toh 25 sai hain
@@scienceclass7th302 matlab
@@scienceclass7th302 3 baje konsai exam hote hai bro?
13:19 muja laga internet connection chala gaya
13:18 mujhe laga Mera net nhi chal rhaa😅😅😅
By the the way
Just padhle is best😊😊😊
Same dude 😂😂😂
Us bro us 😂
thank you so much Bhaiya!
The way you teach is sure to never make us forget the concepts😄❤
Waiting for this chapter from very long time 😁 finally got it 🥳 thanks pranay bhaiya
1:09:02 bhai, i am literally studying at 3am alone and you just scared the shit out of me by saying those words 💀
pehele neend poori kar lo jii
npc
Exams are near
Nothing is clear
But no need to fear
PRANAY BHIYA is here
🤌❣️
42:32 ambulance
I was just searching a video about sound and finally I got this notification.This video made my rest of the day
Pranay Bhai is the best ❤️
The way you played guitar bhaiyaaa is awesomeeeeee ❤️❤️❤️❤️❤️❤️❤️ and thank you so much for for this video I was waiting since long time for this.. and finallyyy❤️❤️🥺
My fav part!!
😂😂😂
28:03
Bhai !! Aise aise hoti ha na bhaiya sooo cute and funny!😂
👍
Thank you bhaiyya! Aisa video dekhke aise dil me khushi hoti hai...
41:39 ambulance sound
Who likes Pranay bhaiya's Smile? 😊😊😀
Me.
C❤😂😊
Thank you so much bhaiya for this wonderful video 🥰☺️and I was shocked when you play ukulele but I can relate this cuz I play piano. Bhaiya tomorrow is my exam and this video was perfect for me and all the students who are watching before exams. Once again thank a lot bro ♥️🥰☺️
42:35 bheya ko pakarne police aayi hai 🚔🚓👮👮♀️👮♂️🚨😂😂
ur great pranay bhaiya u mix the study with joy and fun or kb video ka end aa gya pta bhi nhi chla😌THANK YOU
32:54 42:03
Sir love your content , hats off to u 🙌🏼
Kal exam h aur abhi yeh video is just like a saviour, cuz its uploaded just one day before my exam
Thanks sir for this wonderful explaination 😃 I needed the chapter in one go . This channel is the best 🥰
0:23 bheya apne talent ka flex kr rhe hai 😂
😂😂😂
Nahi wo taar hilanae ki awaaz ko flex kar raha hai 😂😂
Anyone notices the police sound on 42:35 mins btw aaj kal I liked my own comment likhne se jyada likes milte hai😂😂😂
Haaa
Yes
The intro is always thrilling 🔥💯
THANK YOU, BHAIYA, WE WERE WAITING FOR THIS CHAPTER ONLY WITH THIS WE HAVE COMPLETED OUR SYLLABUS.
Nahi mera toh kabka khatam ho gaya gawar ye toh bas revision hai
Bhaiya you know that in the way you use to present a lecture is so energetic ❤️❤️❤️❤️ whe studying we feel so excited 🥰🥰🥰
Pranay bhaia aache se samjhaya aapne I love your technique ❤❤
41:38 siren sound coming
42:34 siren sound coming
I can't found anyone like you sir ❤😊
Bhaiya you should also start a guitar teaching channel 🙂🙂
13:21 mujhe laga ki video pause ho gya kon kon notice kiya 😅😅
Ha😅😅😅😅😅
He tried his best for us❤😩
14:40 to 14:50 feels like kirtan 💀😂😂
16:03😂
Aapke sare chapters science ke explain kiye hue mene dekh liye and today i am watching your last video and my syllabus will be finished...i will always prefer your videos for quick revision thank you for everything sir...I literally Lived class 9 with you💗
41:37 Ambulance passed
I was seriously waiting for this lecture
Thanks bhaaaayyyyaaaaaa
God always bless you
U saved my few precious marks through this lecture 😍
Sobo girl hai kya bhaayaaaaaa cringe kahi ki
53:46 just play it for bhaiya
Newton 5th law state that the exam is directly proportional to fear and stress in mind and inversely proportional to time taken to complete full syllabus in one night 🙃
0:19 hidden talent ✌️😏
Vote for Class 10 lectures please make lectures for class 10❤❤
Ache se samaj aa
gaya
Mane exam ke ek din phele dekha tha or me 9th class me. Pass ho gaya 🎉❤❤❤
Bhaiya abh hamlog class 10th mein jayenge toh uske baad bhi 10th ke liye video daalte rahiyega
Btw your teaching is awesome 🤠😍
Maja aagya lecture me aaj 🤣🤣🤣 54:25
THANK YOU SOO MUCH PRANAY BHAIYAAAA I WAS SOOO TENSED FOR THIS CH!!!! THERE WAS NO PROPER VIDEO FOR THIS SOUND CH THAT SATISFIED ME!! 🥲ACTUALLY INITALLY LOST HOPE AS SOON AS I FOUND OUT JUST PADHLE DOESNT HAVE A LECTURE FOR THIS CH, I WAS MENTALLY PREPARING MYSELF TO FAIL IN THIS CH😰😂😂
Mujhe apke jesa cool bhai chahiye😢
Bhaiya bas jagat bhaiya na ban jaye 😂😂😂
Bhaiyaa theeee most awaited chapter thank youuu😭❤️
Hii
Excellent.
Bhaiya you really did a lot of hard work to made just a topic to be understood by us . Hats off to you from my whole 💜
This man always teach us like our bsf💗 thank u bhaiya💖💖
All thanks to pranay bhaiya without ur support it is very difficult to give our best in exam thank you so much bro 🥰🥰
Can't tell you how much i needed this
53:42 ❤best
53:45 was hilarious moment 😂😂
Defination of wave - when an energy is displaced from the source to the receiver but here neither the sorce and not the receiver moves it travels through the mediums and while traveling through the medium it causes some disturbtions and this disturbions are called waves
Thank me later
Sir your explanation is just wow💕I usually do not understand physics but after seeing this video mine all concepts of this chapter is clear ...
thankuhhh so much😊
Thank you sir you r kinda popular in my school everyone studies from u r lectures thank uhh sir please keep supporting us❤️🔥
The intro ........ mind-boggling ❤❤❤❤
Sound class ❌ Gitter class ☑️
the intro got me goosebumps!!😍
Bhai tera emoji mast lga
Mujhe v ...❤❤
My exam will begin in the 8 hours thank God I watched this video now my concept is clear thankyou sirr😂👍👍
Means you're watching the video before going to bed 😂😂❤❤
Pranay bhaiya i was scared by listening these complex words in my school but after watching the lecture these terms are so fuddu to me 🤩
Thanks bhaiya! 😇
At 56:16
No words 😅❤ just a awesome lecture understand what you teach
SIR YOU ARE A LIFE SAVOR, i have an exam tomorrow which in which this chapter is also included and i was struggling with it now i can finally understand it, thank you bro
Like this comment if you are seeing it before exam like me.😅😅😅
Perfect teaching 😊 better than our schools teacher 😶
17:56 17:57 17:57
Kya be
@@Sarcastic__UV tere ko kya ho Raha mai kuch bhi kru😡😡😡😡😡😡😡😡😡
No one can beat you.The best teacher in world.Keep on going
I was continuously laughing so much that my mother thought i was watching videos instead of studying... When she came to scold me she saw this and then started to ask about the channel and then herself started watching the video with me and laughing 😂
Don't study ,man uhh laugh failure 😂😂😂
videos of the pastrolists,circles,quadrilaterals are needed pranay bhaiya
i am struggling with it