Prashant bhaiya, please create a one-shot lecture on class 9 science revision (all chapters from physics, biology, and chemistry) lecture focusing on key questions. Note: For the students reading this, like this comment as a vote so Prashant sir sees
All Formulas of Electricity: 1) I = Q/t 2) Q = ne 3) V = W/Q 4) V = IR 5) R = Rho x L/A 6)Resistance in Series: Rs = R1 + R2 + R3 7)Resistance in Parallel: 1/Rp = 1/R1 + 1/R2 + 1/R3 (» Reciprocal of R1+R2+R3) 8)H = V × Q i) H = VIt ii) H = I²Rt iii) H = V²t/R 9) P = W/t i) P = VI ii) P = I²R iii) P = V²/R 10) E = P × t S.I. Units: Current ( I ) - Ampere Charge ( Q ) - Coulomb Time ( t ) - Second Potential Difference or Voltage ( V ) - Volt Resistance ( R ) - Ohm Ω Resistivity ( Rho ) - Ohm meter Power ( P ) - Watt Heat = Energy = Work = Joule Measuring Devices: Ammeter / Milli Ammeter - for measuring current (always connected in series) Galvanometer - for measuring small/sensitive currents (we can also get the direction of the current) Voltmeter - for measuring volts (always connected in parallel) Ohm Meter - Measures the resistivity Things to remember: electron charge = (1.6 x 10⁻¹⁹ C) 1kWh= 3.6 × 10⁶J 1Ampere = 1000mA 1 Kilowaat = 1000W 1 Horse Power = 746W i hope this list will help you! ❤ ek free ka like dete jana
Bhaiya thank you soo much for uploading P.S.- Bhaiya pls also make a sure shot series of physics, chemistry and biology for class 9, Sure shot means questions that will 101% come in exam so that it is easy to score 95%+ marks..thank you..your efforts are highly appreciated by all students 🤗 EDIT- Everyone viewing this comment should like, so that this can reach faster..thank you
Sir pls create a sure shot (it means that the question will surely come in exam)so that we can got good marks easily❤ ... students who are seeing this comment like so that sir can see❤
Heyyy Juniors, A senior Here. I am in class 10th right now aand will pass out after 1 month so for all those reading this, trust me once u will be out of class 9th u will love the jouney plus physics in tenth has less chapters involving numericals so dont worry u will like science of class 10 even if u dont like of class 9th. All the best and always stay motivated dont get depressed. Indeed 9th is not easy but its the base for 10th toh poori jee jaan aur mehnat laga do bcuz then 10th will become easy.
Timestamps 00:05 - Exploring the magic of sound in daily life. 00:54 - Chapter on Sound covers key concepts and numerical problems. 02:18 - Sound is a form of energy that creates hearing sensations. 03:00 - Sound is a form of energy that follows conservation laws. 04:36 - Vibration explained through a pendulum example. 05:12 - Sound is produced by vibrations and transmitted through particles. 06:39 - Understanding sound propagation in different environments. 07:26 - Vibrations cause air particle movement leading to sound transmission. 08:50 - A trick to complete your syllabus in one day. 09:31 - Understanding waves as energy disturbances traveling through space. 11:04 - Mechanical waves require a medium, unlike electromagnetic waves. 11:49 - Differences between mechanical waves and electromagnetic waves. 13:19 - Understanding wave types: Transverse and Longitudinal waves. 14:04 - Explaining wave formation through stretching objects. 15:20 - Understanding vibrations and motion in springs. 16:03 - Understanding transverse waves and particle movement. 17:35 - Understanding transverse and longitudinal waves in sound. 18:19 - Transverse waves demonstrate particle motion perpendicular to wave direction. 19:39 - Understanding high and low pressure areas in sound creation. 20:20 - Understanding sound and transverse waves with examples. 21:45 - Sound travels as longitudinal waves with particle vibrations. 22:27 - Importance of confidence and humor in classroom situations. 23:47 - Sound requires a medium to travel, proven through an experiment. 24:24 - Sound requires a medium to travel effectively. 25:42 - Understanding wave characteristics with a focus on frequency. 26:19 - Pendulum motion explained using movement around mean position. 27:52 - Understanding sound waves, compression, rarefaction, frequency, and pitch. 28:36 - Understanding sound pitch through examples of different voice frequencies. 29:57 - Understanding time period in sound waves. 30:44 - Time period inversely relates to frequency in motion. 32:09 - Calculating time period using frequency. 32:56 - Amplitude represents maximum displacement from the equilibrium position. 34:16 - Understanding wavelength in sound waves. 34:59 - Discussing the importance of correct calculations and understanding concepts. 36:29 - Longitudinal waves transfer compression and rarefaction. 37:16 - Understanding wavelength and its representation in meters. 38:38 - Frequency and Speed of Waves Formula Explained 39:20 - Speed depends on the medium's nature and density. 40:53 - Speed of sound increases with temperature changes. 41:29 - Temperature affects sound travel speed and lightning vs. thunder observation. 42:54 - Introduction to sound waves and their properties. 43:39 - Understanding wave frequency and speed calculation methods. 45:07 - Importance of mastering multiplication for calculations. 45:49 - Discussion on waves, their properties, and a humorous anecdote. 47:08 - Understanding amplitude, wavelength, and velocity in waves. 47:57 - Understanding sound waves and important terminology from Chapter on Sound. 49:24 - Understanding frequency, time period, and amplitude in sound waves. 50:05 - Sound pitch depends on frequency and intensity. 51:24 - सुपरसोनिक स्पीड की परिभाषा और उदाहरण 52:07 - Sonic boom occurs when supersonic objects generate shock waves. 53:29 - Incident and reflected waves lie in the same plane. 54:14 - Incident and reflected angles in sound waves are equal. 55:34 - Echo is the reflection of sound heard again. 56:19 - Echo requires open space; it can't occur in enclosed areas. 57:42 - Reverberation is sound reflection causing echoes in enclosed spaces. 58:21 - Understanding sound reflection and reverb in enclosed spaces. 59:41 - Sound absorption techniques enhance audio quality in auditoriums. 1:00:19 - Multiple reflections of sound have practical applications. 1:01:34 - Understanding sound reflection in stethoscopes and hall acoustics. 1:02:16 - Acoustic design ensures equal sound distribution in curved halls. 1:03:39 - Humans can hear sounds between 20 Hz and 20,000 Hz. 1:04:28 - Understanding audible and inaudible sound ranges 1:05:48 - Ultrasound usage in navigation and detection by animals. 1:06:28 - Ultrasound applications include cleaning electronic parts effectively. 1:07:55 - ECG and Ultrasonography for Heart Health Assessment 1:08:34 - Ultrasound benefits in medical imaging and kidney stone treatment. 1:09:57 - Sound production and speed differences explained. 1:10:43 - Understanding sound frequency and vibrations in a minute. 1:12:16 - Sonar technology is used for detection in submarines and boats. 1:13:04 - Understanding sound transmission and detection using a transmitter and detector. 1:14:36 - Understanding sonar and its formula for distance calculation. 1:15:14 - Sona's applications include depth measurement and underwater exploration. 1:16:37 - Understanding sound speed calculations in distance measurement. 1:17:25 - Understanding the reflection and distance calculations in sound propagation. 1:18:49 - Sound travels 1600 meters in 5 seconds. 1:19:39 - Understanding sound velocity and key MCQs for Class 9 Science. 1:21:08 - Sound waves cause air particles to vibrate in sync. 1:21:51 - Understanding the loudness of sound through amplitude and frequency. bhaiya can u take my name abhay class 10 jshlin bhaiya it took a lot of efforts
1. The fundamental unit of life ❤ 2. Matter in our surrounding ❤3. Motion ❤4. Is matter around us pure ❤ 5. Tissues ❤ 6. Force and laws of motion ❤ 7. Gravitation ❤8. Atoms and molecules ❤9. Work and energy ❤10. Improvement in food resources ❤11. Structure of atom ❤12. Sound ❤
"Happy New Year" bhaiya aap ke saath ye year bhi bahut achha jayega ❤❤ Thank you for being with us in any situation 💕❣️ thank you so much 💓❤ Love you so much 😘 😘 😘
Prashant bhaiya ke liye dil se shukriya, jo apni mehnat aur dedication se pura syllabus samajhne aur complete karwane mein madad kiye. Aap jaise guru ka saath milna ek ashirwad hai! 🙏
Watching at New year 🎉🎉 happy new year to all Because from today onwards our new year resolution starts so all the best to all may all get good marks in exam
east or west prashant bhaiya is best when i start a jouney of 9th i suffring stuggle in science but now i am enjoying science because of you prashant bhaiya
Bhai Prashant bhaiya ne apne comments unke lectures ke review sunne ke liye kiya hai so don't pollute this section ye kaam kisi or channel pe jakar kar
Bhaiya please 🥺 bring rapid revision videos for class 9 ❤ i hope you will definitely 😁 make rapid revision videos. For all the students reading this,✨ please like this comment as a vote for rapid revision videos 😊
Bhaiya, I was really waiting for your lecture. You really helped me a lot. You are the BEST. I can't express my feelings in words. You are my Best Bhaiya❤❤❤❤. 😊😊😊😊.
I was waiting for this lecture from almost 2 weeks ....... finally it came....😊 ....... Now it was the last chapter of Class-9 and Class-10 is coming Soon. 𝓐𝓛𝓛 𝓣𝓗𝓔 𝓑𝓔𝓢𝓣 𝓕𝓞𝓡 𝓔𝓥𝓔𝓡𝓨𝓑𝓞𝓓𝓨'𝓼 𝓕𝓘𝓝𝓐𝓛 𝓔𝓧𝓐𝓜𝓢 .. and Happy New Year!
1:23:14 bhaiya really said it today morning 😅 😊. Bcz why to fear when Prashant bhaiya is here.... And this video is being seen before one day for exam. 😂😂
40:13 Bhaiya sorry to correct you but you can't say density because wood has lower density than water but speed of sound is high in wood as compared to water
Actually in solid particles are closer means they have less intermolecular space between them means they are dense , suppose a table when we hit it our external energy goes to utilise it particles of tables do movement then sound is produced if solid is dense the vibration will be faster because more closer particles so solid have high speed , I don't know wheather I make u understand this concept or not...😊
@@aaradhyabansala.b4197 it means solid BHI voice ko transfer kar sakta Hai ? I mean jab ham Kisi pure tarah se packed room me kuchh bolenge to bahar voice ja sakta Hai ?
I guess once the sound is in a medium, then it can't adapt itself to a new medium and continues in the same medium. Also, Sound is faster in solid because, take this example, When people are packed closely in a space, at that time if you push someone, your push will get transfered quickly to people at far distance. But if you push someone in a not so crowded place, you have to push harder for him to get to other person and it also takes time to walk that distance to reach the other person. So here more force (chilla ke bolna padega) will be required and it will take more time to make that push reach further away people. Whereas in crowded areas, it will reach more distance quickly. Asha karta hu samajh gaya hoga.😅
Prashant bhaiya, please create a one-shot lecture on class 9 science revision (all chapters from physics, biology, and chemistry) lecture focusing on key questions. Note: For the students reading this, like this comment as a vote so Prashant sir sees
Yes sir he is right
Yes sir plzz
yes sir he is right you should send a video on revision
Yes sir plz make the video ❤❤
Yes sir please
All Formulas of Electricity:
1) I = Q/t
2) Q = ne
3) V = W/Q
4) V = IR
5) R = Rho x L/A
6)Resistance in Series: Rs = R1 + R2 + R3
7)Resistance in Parallel: 1/Rp = 1/R1 + 1/R2 + 1/R3 (» Reciprocal of R1+R2+R3)
8)H = V × Q
i) H = VIt
ii) H = I²Rt
iii) H = V²t/R
9) P = W/t
i) P = VI
ii) P = I²R
iii) P = V²/R
10) E = P × t
S.I. Units:
Current ( I ) - Ampere
Charge ( Q ) - Coulomb
Time ( t ) - Second
Potential Difference or Voltage ( V ) - Volt
Resistance ( R ) - Ohm Ω
Resistivity ( Rho ) - Ohm meter
Power ( P ) - Watt
Heat = Energy = Work = Joule
Measuring Devices:
Ammeter / Milli Ammeter - for measuring current (always connected in series)
Galvanometer - for measuring small/sensitive currents (we can also get the direction of the current)
Voltmeter - for measuring volts (always connected in parallel)
Ohm Meter - Measures the resistivity
Things to remember:
electron charge = (1.6 x 10⁻¹⁹ C)
1kWh= 3.6 × 10⁶J
1Ampere = 1000mA
1 Kilowaat = 1000W
1 Horse Power = 746W
i hope this list will help you! ❤
ek free ka like dete jana
7:53
thanks it will be useful in 10th :)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:):):):):):):)
:)
:)
Bhaiya apne revision ki achchi technique nikali
Bro baki ke chapter ke bhi dedo na❤❤
Hlo@BENGamerz-kb3lc
Bhaiya thank you soo much for uploading
P.S.- Bhaiya pls also make a sure shot series of physics, chemistry and biology for class 9, Sure shot means questions that will 101% come in exam so that it is easy to score 95%+ marks..thank you..your efforts are highly appreciated by all students 🤗
EDIT- Everyone viewing this comment should like, so that this can reach faster..thank you
Kyu bhai tu abhi appreciate nhi krta hai kya?? 😕
👇 VOTE FOR CLASS 9TH RAPID REVISION
Like my comment so bhaiya can Notice it
Please upload all chapters Rapid revisions 😊 of class 9
Ok
Not sure
@@shreejikivani are u prashant sir
Yes plzz
Bhaiya could not make 12 videos of rapid revision 😊
Sir pls create a sure shot (it means that the question will surely come in exam)so that we can got good marks easily❤ ... students who are seeing this comment like so that sir can see❤
Yes sir please
Yes sir pls so we can get good marks ❤😊
Bhai you want to see all one shot video of Prashant bhaiya,if you want to good score in your exam .
@@AnkitSingh-e1u8b No,sure shot means the question that sir revise will have 90% chance to come in exam
Yesss❤
Parshant bhaiya class 9th ki one shot me full science revision bhi kara do please
Haa bhaiya for finals
Haaan pls
Haannn bhaiya please 🙏🏻
Haaa😊😊
Haaààaa Bhaiya please 🙏😢
43:46 wavelength is 0.5m so lambda x frequency = 0.5 x 2000= 1000
sahi me mujhe laga 10,000 dekh kr ki meri hi maths kharab hai😭😭
@@divinity4653 Mujhe bhi 😂
👍
1000 hai answers
Sir ne bola ki glt mt Krna aur usi sec glt krdiya 😂
Humpty Dumpty Set On The Wall. I Wish That You Score Full Marks In All.. 😅
Thanka bro 😂
@Kinda.good..-x 😄
@@Devrajyadavv you're so 🙂 nice
@@Devrajyadavv I hope u will get good grades in your exams
@Kinda.good..-x thans dear.. U r also
Vote for rapid revision for class 9👇🏻👇🏻
Yes
Yes
Yes
Yes
Yes
44:07 (Small Mistake)
Frequency = 2kHz = 2000Hz
Wavelength = 0.5m
Speed= (0.5×2000)m/s
= 1000m/s ✅
Its Actually 0.5 Not 05....❤
true bhai bare diyan se dekhi hai vedio....
@siddharthkharbanda4385 Dhyan Se Toh Dekhni Hi Thi Prashant Bhaiyaa Ne Puri Shiddat Se Jo Padhaya Tha ❤️
Baat to sahi he
Yes yr
Multiply to main neend mai bhi kr leta hoon😂❤😂😂😂
Heyyy Juniors, A senior Here. I am in class 10th right now aand will pass out after 1 month so for all those reading this, trust me once u will be out of class 9th u will love the jouney plus physics in tenth has less chapters involving numericals so dont worry u will like science of class 10 even if u dont like of class 9th. All the best and always stay motivated dont get depressed. Indeed 9th is not easy but its the base for 10th toh poori jee jaan aur mehnat laga do bcuz then 10th will become easy.
❤❤❤
Timestamps
00:05 - Exploring the magic of sound in daily life.
00:54 - Chapter on Sound covers key concepts and numerical problems.
02:18 - Sound is a form of energy that creates hearing sensations.
03:00 - Sound is a form of energy that follows conservation laws.
04:36 - Vibration explained through a pendulum example.
05:12 - Sound is produced by vibrations and transmitted through particles.
06:39 - Understanding sound propagation in different environments.
07:26 - Vibrations cause air particle movement leading to sound transmission.
08:50 - A trick to complete your syllabus in one day.
09:31 - Understanding waves as energy disturbances traveling through space.
11:04 - Mechanical waves require a medium, unlike electromagnetic waves.
11:49 - Differences between mechanical waves and electromagnetic waves.
13:19 - Understanding wave types: Transverse and Longitudinal waves.
14:04 - Explaining wave formation through stretching objects.
15:20 - Understanding vibrations and motion in springs.
16:03 - Understanding transverse waves and particle movement.
17:35 - Understanding transverse and longitudinal waves in sound.
18:19 - Transverse waves demonstrate particle motion perpendicular to wave direction.
19:39 - Understanding high and low pressure areas in sound creation.
20:20 - Understanding sound and transverse waves with examples.
21:45 - Sound travels as longitudinal waves with particle vibrations.
22:27 - Importance of confidence and humor in classroom situations.
23:47 - Sound requires a medium to travel, proven through an experiment.
24:24 - Sound requires a medium to travel effectively.
25:42 - Understanding wave characteristics with a focus on frequency.
26:19 - Pendulum motion explained using movement around mean position.
27:52 - Understanding sound waves, compression, rarefaction, frequency, and pitch.
28:36 - Understanding sound pitch through examples of different voice frequencies.
29:57 - Understanding time period in sound waves.
30:44 - Time period inversely relates to frequency in motion.
32:09 - Calculating time period using frequency.
32:56 - Amplitude represents maximum displacement from the equilibrium position.
34:16 - Understanding wavelength in sound waves.
34:59 - Discussing the importance of correct calculations and understanding concepts.
36:29 - Longitudinal waves transfer compression and rarefaction.
37:16 - Understanding wavelength and its representation in meters.
38:38 - Frequency and Speed of Waves Formula Explained
39:20 - Speed depends on the medium's nature and density.
40:53 - Speed of sound increases with temperature changes.
41:29 - Temperature affects sound travel speed and lightning vs. thunder observation.
42:54 - Introduction to sound waves and their properties.
43:39 - Understanding wave frequency and speed calculation methods.
45:07 - Importance of mastering multiplication for calculations.
45:49 - Discussion on waves, their properties, and a humorous anecdote.
47:08 - Understanding amplitude, wavelength, and velocity in waves.
47:57 - Understanding sound waves and important terminology from Chapter on Sound.
49:24 - Understanding frequency, time period, and amplitude in sound waves.
50:05 - Sound pitch depends on frequency and intensity.
51:24 - सुपरसोनिक स्पीड की परिभाषा और उदाहरण
52:07 - Sonic boom occurs when supersonic objects generate shock waves.
53:29 - Incident and reflected waves lie in the same plane.
54:14 - Incident and reflected angles in sound waves are equal.
55:34 - Echo is the reflection of sound heard again.
56:19 - Echo requires open space; it can't occur in enclosed areas.
57:42 - Reverberation is sound reflection causing echoes in enclosed spaces.
58:21 - Understanding sound reflection and reverb in enclosed spaces.
59:41 - Sound absorption techniques enhance audio quality in auditoriums.
1:00:19 - Multiple reflections of sound have practical applications.
1:01:34 - Understanding sound reflection in stethoscopes and hall acoustics.
1:02:16 - Acoustic design ensures equal sound distribution in curved halls.
1:03:39 - Humans can hear sounds between 20 Hz and 20,000 Hz.
1:04:28 - Understanding audible and inaudible sound ranges
1:05:48 - Ultrasound usage in navigation and detection by animals.
1:06:28 - Ultrasound applications include cleaning electronic parts effectively.
1:07:55 - ECG and Ultrasonography for Heart Health Assessment
1:08:34 - Ultrasound benefits in medical imaging and kidney stone treatment.
1:09:57 - Sound production and speed differences explained.
1:10:43 - Understanding sound frequency and vibrations in a minute.
1:12:16 - Sonar technology is used for detection in submarines and boats.
1:13:04 - Understanding sound transmission and detection using a transmitter and detector.
1:14:36 - Understanding sonar and its formula for distance calculation.
1:15:14 - Sona's applications include depth measurement and underwater exploration.
1:16:37 - Understanding sound speed calculations in distance measurement.
1:17:25 - Understanding the reflection and distance calculations in sound propagation.
1:18:49 - Sound travels 1600 meters in 5 seconds.
1:19:39 - Understanding sound velocity and key MCQs for Class 9 Science.
1:21:08 - Sound waves cause air particles to vibrate in sync.
1:21:51 - Understanding the loudness of sound through amplitude and frequency.
bhaiya can u take my name abhay class 10 jshlin
bhaiya it took a lot of efforts
Bhai itna time h tumare ps ki 😂
😂
Kisi ke pas itna time bhi hota hai.
thanks broo so sweet of you!!
You are so sweet to waste your time
Prashant Bhaiya ki wajah se science easy lagti hai😊
Your Respect for Prashant Bhaiya. is your one ❤❤❤......
Right
Correct 💀☠️
Right
Exactly
Right
Board ki Kasam jisne subscribe nahi kiya BOARD me fail Don't take risk 💀☠️
Ase thodi naah hota hain
Aaj kal boards ninth mein bhi hone lage wah 😂
Dhamki ha 🤨🤨 bolo kya ha thuman is video per pardi karn na aia ho to paro sungiaa
What About (Subscribed)
Na karte
Pausing at 47:57 remind me to continue by liking 😊
1. The fundamental unit of life ❤ 2. Matter in our surrounding ❤3. Motion ❤4. Is matter around us pure ❤ 5. Tissues ❤ 6. Force and laws of motion ❤ 7. Gravitation ❤8. Atoms and molecules ❤9. Work and energy ❤10. Improvement in food resources ❤11. Structure of atom ❤12. Sound ❤
Why don't he make division in living organisms
Out of syllabus @@MohdMustaqeem-o2y
@@MohdMustaqeem-o2yit is not in new ncert
aap shrivastava ho main bhi shrivastava ho bye dost
@@hrideshkumarsrivastava456😊
Sir yar aab hamare leya bhi 20 ya 40 mins ke short revision lectures lao na pls 😢😢😢
Love you prashant bhaiya😢 🎉❤❤❤
"Happy New Year" bhaiya aap ke saath ye year bhi bahut achha jayega ❤❤
Thank you for being with us in any situation 💕❣️ thank you so much 💓❤
Love you so much 😘 😘 😘
🎉
1:19:47- Our Pookie Bhaiya is Clapping for his sisters and brothers🎉🥳🥳 Yeah...🎉❤❤❤😅
Prashant bhaiya ke liye dil se shukriya, jo apni mehnat aur dedication se pura syllabus samajhne aur complete karwane mein madad kiye. Aap jaise guru ka saath milna ek ashirwad hai! 🙏
15:08 Bhaiya Teleported....And...Bhaiya is Fastest water drinker in the world💀🙏🏻🙏🏻
😂😂😂
Tujhe Kya problem hai bhai
😂😂
Usko editing kehte h dude😂😂
agar tere ko Pani Pina Hai to tu Pi le bhai
1:23:47 Love you Prashant bhaiya ❤️🩹 We will Miss you a
lot 🥺 Our pookie bhaiya love you 3000 💪🏾🗿
44:05 mistake 10000❌1000✅
You are right bro
Tum bade Tej ho rahe ho bhai
Ye
Right bro
Yes you are absolutely right bro
Finally science syllabus completed🎉🎉🎉🎉Class 9
Hii
@@Megha-z9u hello
What's your name
only Megha
@@Megha-z9u my name is Adarsh as same as my channel name
Halka ho ya bhari, ki halka ho bhari prashant bhaiya ko toh hai sabko science padhani ❤
It's funny 🤣
Bhai rhyming nahi bani
@VaishnavKumar-v4e Thik hai bhai
@@VaishnavKumar-v4ehaan
No one can beat our bhaiya in science 🧪
Samriddhi ma'am and rakshak sir beat prashant bhaiya
@@Solitude_in_solace_seeker that's TRUE.
@@Tigeryadav-4toh video dekh hi kyu rahe ho 😂
Controversy my kiya kro no one can beat out Prashant bhaiyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Never @@Tigeryadav-4
54:27 Shayad maine Ise 8th ki book main light ki chapter main pada tha 😅😅 incident ray, normal, reflected ray.
Yeah!!!
Bahut intelligent ho bhai Tum to sab yad rahata Hai tumko
One of the best study successful channel ❤❤ 1:06
😂
😅
Finally this chapter is came 🎉❤
Wait is over
Yeah 👍🙂
Watching at New year 🎉🎉 happy new year to all
Because from today onwards our new year resolution starts so all the best to all may all get good marks in exam
Happy new year, Ummid krta hu sabko 95% aaye
@TheBharatace same to you bro
Same to you guys 🎉🎉
15:07 aaila jadoo 😮
😂😂
It's actually editing 😂
The whole syllabus is complete🎉let's celebrate as well as thank you so much prashant Bhaiya for your guidenss
Improvement in food resources?
@RONAKBAG-w2q search kerle phale
@RONAKBAG-w2q search karke dekh kab ka complete kara diya
44:05 Bhaiya ans 1000 m/s aana chahiye mere hisab se to
Ha 1000 hai
Hmm sir ne decimal notice nhi kiya.
. Bhool gaye 😂
sir nay thoda sa galtal kar diya. But we still got the idea and answers so just let it be
mistakes ho jatehe bhai
east or west prashant bhaiya is best when i start a jouney of 9th i suffring stuggle in science but now i am enjoying science because of you prashant bhaiya
Yess😊
Prashant bhaiya you are best science teacher in the world
Science ka best teacher 🎉🎉
Me😅
Ka ❌
Ke ✅
@@BTSarmyOT7-jk7 aap bade samajhdar ho rahe ho bhai
Bhaiya, I am out of words to thank you for all the lectures you posted of class 9th's Science 🙏 God bless u bhaiya. You are the greatest❤
Finally aagya sound 🎉🎉🎉🎉
Hi
1:19:55 bhaiya this question is very easy,because we are study from you ☺️😊😊😊
celebration!!🥳🥳 Guyz for completing physics syllabus.
Sara syllabus ho gya boi
@@GarvitMalik150bhai bio k kuch chapter nahi hua like why do we fall ill
@EDITZ-b1osyllabus se delete hai
Bords ki Kasam jisne comment like nahi kiya vo bords exam ma Fail 😂😂(don't take risk) 💀💀
😂😂
😂😂Pehla to 9 pass kar la
9th board ki thodi na hai😂
😂😂😂😂
Bhai Prashant bhaiya ne apne comments unke lectures ke review sunne ke liye kiya hai so don't pollute this section ye kaam kisi or channel pe jakar kar
Teacher jab pdhati h to lagta h ki radio start kar diya ho pr Prashant bhaiya ke aane pr lagta h ki ab to chapter cover ho hi jayega 😄
Fr!🤌
Bhaiya please 🥺 bring rapid revision videos for class 9 ❤ i hope you will definitely 😁 make rapid revision videos.
For all the students reading this,✨ please like this comment as a vote for rapid revision videos 😊
a house fly is flying in video 0:35
You’re seriously focusing on that?
@PranavKandhukuritrueeee😂😂😂😂😂
😂😂😂😂
Bruh 😂
12:19 mera dil garden garden ho gaya😊😊☺️☺️🥰🥰
Our pookie bhaiya 😍😍
Mee tooo 😂😂🤭🙈👀
Yes❤
Me too ☺
Ak dam sahi bola
Sarama gai kyu 😂@Nexttopperskiduniya25
Bhaiya, I was really waiting for your lecture. You really helped me a lot. You are the BEST. I can't express my feelings in words. You are my Best Bhaiya❤❤❤❤. 😊😊😊😊.
Sister please mujhe bata doo Prashant sir see kaise baat hogi
15:07 greatest transition ever
8:43 Prashant bhaiya method to cover syllabus in 1 day ❌ 1 minute✅
complete nhi bhai cover
Samj agya
Kya 1 min😅😅😅😅@@Akash_Shete_96k
Today is my birthday but no like😢
Happy birthday
Happy birthday ji 🥰
Happy birthday God bless you 🎊🥳🥳
Happy birthday 🎂🎂
Apne birthday par yaha kyu aajate ho likes ki bheek mangne.
Dost ya family ke sath maje karo
3:19😂😂 free fite
Prashant bhaiya , then what is the difference between oscillation and vibration Because both are back-and-forth motion 🤔. 4:43
both are the same
Both are same
@ManishaChauhan-w1i no both are not same i think so
@ManishaChauhan-w1i if they are same so plz can you explain.
Vote for legend alto 1:12:50
Lord alto❤❤❤
😅
Agar aaj koi bhi ise like karega uske exam mai a dua karunga ki bohot ache marks aye 😅
Happy new year all of you❤❤❤
Thank you and same to you 😊
Same to you❤❤❤
Sir mai padhte padhte so gya
Haaaa sir
Prashant bhaiya jo bacche 9 se 10 mein ja rahe hai iss sal vo kaise starting kare 10 ke acche percentage lane ke liya iss par ek video bana dijiye ❤❤
Yess bhaiyaa pleasee
44:11 me answer 10,000 nahi 1,000 hai
Bhaiya sabse accha padhate hai lekin kabhi kabhi mistake ho jati hai😁😁😁
I was also wandering about that 😂
Kyuki bhaiya to neendo me bhi multiply kr lete h isiliye 😅😅😅
Haan Bhai shi me bhi
Any from 2025
Me
Mee
Me
Me
Mee
1:04:41 8th mein infrasonic and ultrasonic sikhaya hai
Sir I from Nepal but I love this india ❤❤❤❤
Thank you bro to love our India . ❤❤❤
@@satnandanmahto8745 You are welcome in our India🇮🇳. I felt very happy after reading your comment. In fact I wanna visit Nepal 🇳🇵once.
Welcomo to our best teacher of the universe
Finally aaj sound chapter clear hoga 😊😊😅😅😅
32:54 I'll continue Tommorow
Why bro .see now 🐒
1:08:30 Liver ke undar stone 💀
Thank you Prashant bhaiya❤❤. Love from Assam😊😊😊.
Hello miss ?
@Plexyarmy007 hello
@@RatanDebnath-w5v miss can you help my
No one can beat our prashant bhaiya ..........✨✨
One of the best video😊😊😊😊😊😊😊😊 thank you sir❤❤😊❤😊❤😊😊❤❤❤
Line aisi honi chahiye thi halka ho ya bhari Prashant bhaiya ki science sabko hai pyari.
Bhai padhne Aaye Ho ya shayari sikhane Aaye Ho
thankyou so much sir for completing the whole syllabus ....
47:59
(All important terms)
It helps before one day of exam 😂
Thx
I hope I will find it again
@PRTMBOSS timing dekh lo
Bhi jii hmare March me paper haa😅😅
Jo like nahi karega vo class 9th me fail. Don't take risk 😅😅😂😂
Bhai Main to risk lega ab tu fail karke Bata
Prashant bhaiya ab revision series bhi karva do plzzzzzzzzzzzzzzzzzzz❤❤
Correct
Vase z koh itana khinchane kih jarurat nahi the
@Dippibhandari143 aap bade Tej ho rahe ho
@rajatpatidar-tf6 voh toh mare best friend kih vajah sai vase aasa kiya kaha mane joh taaz lagi mai aap koh 🤔
Why you fear,do not waste your tear , open your ear , when prasant bhaiya is here ,
Thank you bhaiya>>❤ 🤌 ( my exams are comings from 6 jan)
Mine too
Thank you so much sir...
😍😍😍😍😍😍
I was waiting for this lecture from almost 2 weeks ....... finally it came....😊 ....... Now it was the last chapter of Class-9 and Class-10 is coming Soon.
𝓐𝓛𝓛 𝓣𝓗𝓔 𝓑𝓔𝓢𝓣 𝓕𝓞𝓡 𝓔𝓥𝓔𝓡𝓨𝓑𝓞𝓓𝓨'𝓼 𝓕𝓘𝓝𝓐𝓛 𝓔𝓧𝓐𝓜𝓢 .. and Happy New Year!
I was also waiting
@@Aesthetictrendify yeah this time Prashant Sir was busy in Class 10 lectures
12:19
Aaye haye mere dil iss wakt garden garden ho gaya ❤❤❤Love you bhaiya ❤️🔥❤️🔥
Thanks for this chapter bhaiya 🤗🤗💯💯💯❤️🔥❤️🔥🙏🙏✌️✌️💗💗💞💯❤️❤️❤️🔥🥰🥰
Hi
I want to talk with you
@@AmitRay-t8w Hello kya hua batao ❤
@@AmitRay-t8w Hello kya hua batao ❤
@@AmitRay-t8wHello kya hua batao ❤
44:00 wale numerical me 1000m/s aayega 10000m/s nhi
accha padhna chodd de
Thankyouu so much sir❤
Bhaiya iske notes kaha per milenge
Mile ?
@shivaniratra4828 nahi
Bhai bhaiya ne ek video mein sare chapters ke notes diye hai
Video ka link
Are kbhi to description dekh liya karo pehle hi link hai
45:42 sahi baat hh 😂😂
Prashant bhaiya is great teacher. Who teaches us in great and funny way.
thank you for your support Prashant bhaiya
💘💘💘💘💘
Sir, kindly make rapid revision videos for class 9
Bhaiya kaas bas 1 din pehle daal dete kal hi science ka pre board tha
But still thanks very much as ab final me bilkul dikkat nhi aayegi❤❤
9th mai pre board?
@aravguha7499 yup
@aravguha7499hote hai bhai kuch schoolon mai
9th ma pre bord
35:01 this was op😂
Thank You Bhaiya thats why every one says Exam are near so why do fear if Prashant Bhaiya is here
7:23 imp propagation sound
1:06:30 impppp application of ultrasound
1:18:40 imp must come question
Hello
Yah kam hai kya aapka
No need to fear when Prashant bhaiya is here....😊😊
Kal mere papa ka birthday tha🎉
Respect and one like for my papa💀❤❤❤❤❤❤❤❤
Padhle bhai😂❤
Tere Papa ka Birthday to Main Kya Karun
1:11:06 6000 and the motion of hand is darkest in this video ☠️💀😅
1:23:14 bhaiya really said it today morning 😅 😊. Bcz why to fear when Prashant bhaiya is here....
And this video is being seen before one day for exam. 😂😂
Bhaiya ek video Aisa banaa do jismein chemistry aur physics ke sare formule Ho
Ohh nice idea 💡without mind
@@nehajha3089 kya kehna chahta h bhai
Ram ram sir 0:14
Science matlab Prashant bhaiyaaaa😎😌
Nahin bhai science matlab to vigyan hota Hai
3:17 bhaiya free free khel raha tha.
This line is epic 👍😻👍
34:32 Samaj gaya 👍🏽
2 crest ke between ka distance
33:57 sir you look so cute
4:22 Girls can understand 🗿👺 (no offence)
Jisne like nahi kiya exam me fail hoga 😂
40:13 Bhaiya sorry to correct you but you can't say density because wood has lower density than water but speed of sound is high in wood as compared to water
I am unable to understand that how sound travel in (inside) solid ? 🙄😂
Actually in solid particles are closer means they have less intermolecular space between them means they are dense , suppose a table when we hit it our external energy goes to utilise it particles of tables do movement then sound is produced if solid is dense the vibration will be faster because more closer particles so solid have high speed ,
I don't know wheather I make u understand this concept or not...😊
@@aaradhyabansala.b4197 it means solid BHI voice ko transfer kar sakta Hai ? I mean jab ham Kisi pure tarah se packed room me kuchh bolenge to bahar voice ja sakta Hai ?
@@aaradhyabansala.b4197 if it can go then why, when we speak anything inside car then voice doesn't go outside the car ?
I guess once the sound is in a medium, then it can't adapt itself to a new medium and continues in the same medium.
Also,
Sound is faster in solid because, take this example,
When people are packed closely in a space, at that time if you push someone, your push will get transfered quickly to people at far distance.
But if you push someone in a not so crowded place, you have to push harder for him to get to other person and it also takes time to walk that distance to reach the other person. So here more force (chilla ke bolna padega) will be required and it will take more time to make that push reach further away people. Whereas in crowded areas, it will reach more distance quickly.
Asha karta hu samajh gaya hoga.😅