Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App. Download the App from Google Playstore ( bit.ly/2SHIPW6 ) Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6 Physicswallah Website: physicswallahalakhpandey.com/ LAKSHYA Batch(2020-21) Join the Batch on Physicswallah App bit.ly/2SHIPW6 Registration Open!!!!
What will you get in the Lakshya Batch? 1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey. 2)Live Classes and recorded Video Lectures (New, different from those on RUclips) 3)PDF Notes of each class. 4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level. 5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture. 6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021) 7)In case you missed a live class, you can see its recording. 8)You can view the videos any number of times. 9)Each chapter will be discussed in detail with all concepts and numericals 10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams. ****Test Series for XI & XII**** We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year. The test series follows very logical sequence of Basic to Advance questions.& Evaluation of Test and Solution to all the questions at the end of the test. ========================================================= For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/ Follow us on: Instagram instagram.com/physicswallah/ Facebook: facebook.com/physicswallah =========================================================== 12th Chapter 9 : Ray Optics 01 : Introduction & Reflection in a Plane Mirror JEE /NEET ruclips.net/video/_nGZGo4gHGo/видео.html Ray Optics 02 : Number of Images formeed by Two Plane Mirrors JEE/NEET ruclips.net/video/xLMFyXXUfTs/видео.html Ray Optics 03 : Velocity in Plane Mirror - Velocity of Object & Velocity of Image JEE/NEET ruclips.net/video/-zjwlf1sPtQ/видео.html Ray Optics 04 : Spherical Mirrors: Introduction :Focus ,Focal Length & Focal Plane - Sign Convention ruclips.net/video/NdJEdh3xC2Y/видео.html Ray Optics 05 : Image Formation by Concave & Convex Mirror for Different Position of Object JEE/NEET ruclips.net/video/iEMPrqdGPMU/видео.html Ray Optics 06 : Mirror's Formula -Derivation for Concave & Convex Mirror +Basic Numericals + Concept ruclips.net/video/bSxWxqfhIYE/видео.html Ray Optics 07 : Magnification - Magnification & Mirror's Formula Best Numericals JEE/NEET ruclips.net/video/P2pLDPj-DWk/видео.html Ray Optics 08 : Combination Of Mirrors - Concept of Virtual Object JEE /NEET ruclips.net/video/GLBzqqpcRF4/видео.html Ray Optics 09 : Velocity in Spherical Mirrors - Velocity Of Object & Velocity Of Image JEE/NEET ruclips.net/video/IHL0rxbPWJo/видео.html Ray Optics 10 : Refraction Of Light : Snell's Law & Refractive Index JEE/NEET ruclips.net/video/VimYgbSw28g/видео.html Ray Optics 11 : Real Depth and Apparent Depth - Complete Concept with Best Numericals JEE/NEET ruclips.net/video/rUi_chxd_qE/видео.html Ray Optics 12 : Refraction - Shift through a Glass Slab : JEE/NEET ruclips.net/video/18DZxFMlNqE/видео.html Ray Optics 13 : Critical Angle and Total Internal Reflection - TIR - JEE/NEET ruclips.net/video/GIv3PN9vcR8/видео.html Ray Optics 14 : Refraction through Prism : Concept , Numericals & Minimum Deviation Case JEE/NEET ruclips.net/video/DnC5-gM81qc/видео.html Ray Optics 15 : Refraction from Spherical Surfaces - Formula - Derivation and Numericals JEE/NEET ruclips.net/video/SZm0KLuRpKI/видео.html Ray Optics 16 : Lens - Introduction : It's Types , Optical Centre , Focus , Focal Length JEE/NEET ruclips.net/video/-K9yueGZ5pI/видео.html Ray Optics 17 :Image Formation By Convex and Concave Lens for different Positions of Object JEE/NEET ruclips.net/video/jJB4roc5n2E/видео.html Ray Optics 18 : Lens Maker's Formula - Derivtion and All Types of Numericals JEE/NEET ruclips.net/video/KYHt5Dxza5Y/видео.html Ray Optics 19 : Magnification - Magnification & Len's Formula with Best Numericals JEE/NEET ruclips.net/video/_E_6EcA6Kr4/видео.html Ray Optics 20 : Combination of thin lenses in Contact II Cutting Of Lenses II Power - JEE/NEET ruclips.net/video/8i1_zA336Pc/видео.html Ray Optics 21 : Silvering Of One Surface Of Lens - Silvered Lens JEE/NEET ruclips.net/video/3eX52D-7G80/видео.html Ray Optics 22 : Microscope - Simple Microscope & Compound Microscope - JEE/NEET ruclips.net/video/-QIximwdKYI/видео.html Ray Optics 23 : Telescope - Refracting Telescope & Reflecting Telescope JEE/NEET ruclips.net/video/n8nCGAg3AuU/видео.html
Sir, I go to Narayana school, but your teaching is so much better than other teachers. Your teaching is so amazing that I can't even explain. You understand where we get stuck and what we don't understand. Unlike other teachers, you explain the concepts so beautifully that some students who didn't use to like physics, have now made it their favourite and the strongest subject. You are the best of the best teachers sir. We all wish if we could meet you sir. U deserve more than a trillion subscribers. Love you, sir. Thank you so much for doing all this for us. We always wanted a teacher like u. Once again, thank you soooooooooooo much sir. We all love u for your kindness, cracking jokes, your singing, and teaching the way like no other can. WE LOVE YOU, SIR!!!! Let God give you everything more than what u deserve.
Namaste sir..... my name is kanishk Sharma and this is the first time I am commenting on any you tube channel...today I have completed all the lectures of class 11th and going to start the lectures of class 12 from tomorrow onwards....I am watching your videos continuously for the last 3 months...usse pahle lagta tha ki mujhe zindagi mein kabhi physics samajh nhi aa sakti ... I am a dropper ...mere hamesha coaching ke tests mein 60 to 70/180 score rahta tha...but aapki videos dekhne ke baad mera score for the last 3 months is always above 150/180...great job sir ....mera bhi vision kuch aapke jaisa hi hai....is desh ke liye main bhi apna contribution dena chahta hoon....ye saaari baatein isliye like raha hoon kyunki ye mera first and last comment hai on you tube.. aapki sabhi videos ko ❤ se like karta hoon...is year ka neet topper physics wallah branch se hi niklega ye mera aapse waada hai....ab neet ke baad hi aapse mulakat and baat hogi....luv u sir❤...pata nhi aap comment padhoge ya nhi...agar padho to like ya comment kar dena so that I know ki aapne ye msg dekh piya hai....
_So , You get a different kinda magical happiness when any chapter gotta be completed and Numaricals get done by you ! Thank you SIR , we all owe YOU !_
The worst thing that happened in my life was that i found you very very late and the best thing that had happened in my life was Even though it was late, I found you☺ Thank u sir..so much
Maine toh physics chod diya bcoz mere pass classes me deneke paise nhi the aur na mobile phone mughe samajh me hi nhi aate tha physics but ab alakh sir ka video mila hai but bohut late hogaya hai !😣
completed full ray optics within 11 days as I am in rush to complete my syllabus for term 2 boards, even though in rush every topic is crystal clear now all thanks to allakh sir ❤️
Finally guys today all 14 chapters of phyiscs completed This is the end of journey with alakh sirs old lecture and hello baccho I wish all my hard wark pays off this is a overwhelming moment for me, I wish my mans legacy continues every year with new students and same hello baccho.....
Pehle iss saal physics ka syllabus complete karane ka sochen .... Phir kuch aur karenge ..... Jo students inse ummed lagayen baithe hain unka ek saal aur waste hoga ... Ham jaise log nikal jayenge par gareeb phir se harjayega hamare paise ke samne jo sir nahi chahte the .. par unki koshish uss tarike ki nahi rahi ....
@@night67_5 Kya sir jitna padhaaye utna acche pad liye kya tum log 100% question kar loge kya. Itna hard work, sirf imagine kar ke padhana not a easy work. Syllabus ki tension nhi hai kyu ki jab sir itna kiye to syllabus bhi jaoor complete karenge....
Sir , with lots of love and respect , congrats to you for 2 million subs or in your language ' bachho' 😁. The journey started from 0 to 20 lakhs from English to hindi From teacher to a celebrity teacher Other teacher say , i teach in Allen , resonance, aakash ,etc But our pw teaches to an institute called 'children of India' which has 20 lakh students May this no grow to 20 million n more Keep teaching and enriching us
I was worried that how would i end this chapter easily with full understanding . But if alakh sir is there everything is possible.😅 blessed to have u as our physics teacher❣️god bless u sir😇😇
@@cherry_here well, I think he teaches really good and if you understand the concepts, solve any modules or some good question books for practice, this chapter will be ready 👍
The whole session has come to an end 😭 and it's a time to say good bye to the the journey of2 years with you and whole PHYSICS WALLAH family ....hope karta hu ki graduation Mai bhi aapke jaisa teacher mile but it seems quiet impossible 😭😭...end Mai sir bass lots of love and respect ...
Sir, you are doing some really nice work and it’s the last stretch now, only a few months left. All your students need you to help. We have been trusting you since two years when you promised us you’d help. Your 2 million students need you to keep your word when you said you’ll finish your portion by December. I know you’ll never read this, but if you do, it’s just a reminder of how awesome you are and how many people love you all across the country :)
It's SUCH a GREAT feeling to have this biggest unit of class 12th completed 😅 from one of best Teachers💯 Really when I searched for this chapter on physics wallah , on seeing 23 videos playlist I thought how I'm gonna do it !!! BUT now when I hve completed this chapter in 5 days it's such a satisfactory😃 feeling ever🎊🥳🥳 ALL THANKS TO U SIR💫
@@tusharyadav3769 me sirf apni efficiency bta rah hu muje bhi pta hai yaa competition nhi chal rah bhailye hi kisi ko ek mahina hi kyu na lage complete krne me muje usse kya
@@nayanghodke4161 yes u r somewhat correct actually when I study from alakh sir my curiosity to know abt what next in another lecture increases so I complete all the lectures as soon as possible but I also attended my online chemistry n physics cc offline maths cc n joined my schl online classes n also revision of the topics taught in cc...😁😁😂😂😒😂
Watching in lockdown and there is no message of opening of schools. But sir Ur all videos of physics helped me a lot in this pandemic of covid..... Thanks a lot sir.. u are the best teacher I have ever seen ....🤩🤩🤩
1:02:54 alakh-alakh colour of light ki alakh -alakh wavelength hoti hai . Yani alakh-alakh colour ke liye refractive index alakh-alakh hoga, jab refractive index alakh hoga toh alakh-alakh colour ki bending alakh-alakh hogi.😘 Samajh rahe ho ?? 😄 _ Nahi samajh rahe ho 😂
12 December 2023 Finally I completed optics Our jorney was started from 6.6M student and it finished with 1.6M students I am feeling so happy because I am also belong from remaining 1.6M student . Thank you sir ☺️☺️☺️
This man is really a legend..Imparting quality education at such affordable prices and starting from such a humble background and has reached great heights of success..You really are an inspiration for many Alakh Sir..Kuch to khaas baat hai aap mein jo aapko dusro se alag banati hai!!!!!
Best teacher of physics I have ever meet 🥺🥺❤️❤️....first time mujhe ray optics itne ache se smjh aayi 🥺...thnku so much sir ❤️ Saare concepts clear ho gye 😁...after viewing 23 lectures of ray optics ...🤭😅
Finally completed this chapter! Took me about 40 hours to complete this series. But I am glad that I finally finished it. Now I am able to solve my coaching's module.. Thanks a lot sir❤❤
खोया हुआ दौलत खोया हुआ विद्या और खोया हुआ स्वास्थ्य फिर भी लौट सकता है परन्तु खोया हुआ समय कभी नही लौट सकता।। इसलिए मेरे मित्रो अपना समय कभी भी मत बर्बाद करना।।
thank you so much sir ...for so much support....if i will clear my medical entrance examination then the whole credit will be given to you only...as my physics and chemistry doubts and concepts are clear only because of you....i really respect you so muchh...#loveyousir
I reading comments of students 2years back They are congratulating him for 2 million And now Meanwhile my Mind thinking of his 8000 crore physics wallah with 8.5 million subscribers Soo.. Physics wallah is a brand hence proved
Sir k 2 million subscriber just now first to say itt..great journey with you sir 10 million tk Le jaege channel ko sir AP bhgwaan s bhi bhut bdkr ho..Hit like..💪💪👍👍👍
Can't go without thanking uh... thanks a lot sir tomorrow is my exam and this topic felt so difficult to me. I was literally crying but then I consoled myself and watched ur lecture. Thanku so much sir 😭💗🫶🏻🙏🏻🙏🏻
CONGRATULATIONS ON 2 MILLION SUBSCRIBERS SIR! JUST KNOW THAT YOU'RE THE BEST TEACHER ANYONE COULD HAVE, WE ALL LOVE YOU SO SO MUCH AND WE ARE ALL SO HAPPY FOR YOUR SUCESS, WISHING YOU LOADS OF HAPPINESS AND SUCESS YOUR WAY ❤️❤️ Like if you want Alakh Sir to come live.
Congratulations for 2M subscribers sir,And By seeing your lecture on Microscope and Telescope,I was able to know the concept.Thanks and continue making such wonderful videos.
This is literally my happy place, i come here everytime i need a real feel of the concepts and after watching the lectures i am so clear with it. I love watching your old videos sir, it helps me lott. Thankyou so much. :)))
Lots of videos are available in you you tube but real satisfaction isi lecture se mili finally optics completed no fear now in this topic for upcoming neet exam 23❤
Really sir you are the best and one of the most dedicated and student centric teacher. You have never said like my videos and subscribe and this makes you very unique
finally I completed all lectures in 4days with notes and all questions 😅 thank u sir for providing amazing lecture 🙏this platform proud us to be Indian because of equality 🇳🇪🇳🇪
Actually Ithought it is deleted from the syllabus and I was studying it only for competition. Will you further explainhow much syllabus is removed from this chapter. I have seen the pdf but it's not clear
@@siddhisahu2208 These are all the topics of ray optics that are not going to come in boards - Reflection of light, - Spherical mirrors,(recapitulation) - Mirror formula - Scattering of light - blue colour of sky and reddish appearance of the sun at sunrise and sunset. - Resolving power of microscope and astronomical telescope, - Polarisation - Plane polarised light - Brewster's law, - Uses of plane polarised light and Polaroids
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LAKSHYA Batch(2020-21)
Join the Batch on Physicswallah App bit.ly/2SHIPW6
Registration Open!!!!
What will you get in the Lakshya Batch?
1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
2)Live Classes and recorded Video Lectures (New, different from those on RUclips)
3)PDF Notes of each class.
4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
7)In case you missed a live class, you can see its recording.
8)You can view the videos any number of times.
9)Each chapter will be discussed in detail with all concepts and numericals
10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
****Test Series for XI & XII****
We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
The test series follows very logical sequence of Basic to Advance questions.&
Evaluation of Test and Solution to all the questions at the end of the test.
=========================================================
For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/
Follow us on: Instagram instagram.com/physicswallah/
Facebook: facebook.com/physicswallah
===========================================================
12th Chapter 9 : Ray Optics 01 : Introduction & Reflection in a Plane Mirror JEE /NEET
ruclips.net/video/_nGZGo4gHGo/видео.html
Ray Optics 02 : Number of Images formeed by Two Plane Mirrors JEE/NEET
ruclips.net/video/xLMFyXXUfTs/видео.html
Ray Optics 03 : Velocity in Plane Mirror - Velocity of Object & Velocity of Image JEE/NEET
ruclips.net/video/-zjwlf1sPtQ/видео.html
Ray Optics 04 : Spherical Mirrors: Introduction :Focus ,Focal Length & Focal Plane - Sign Convention
ruclips.net/video/NdJEdh3xC2Y/видео.html
Ray Optics 05 : Image Formation by Concave & Convex Mirror for Different Position of Object JEE/NEET
ruclips.net/video/iEMPrqdGPMU/видео.html
Ray Optics 06 : Mirror's Formula -Derivation for Concave & Convex Mirror +Basic Numericals + Concept
ruclips.net/video/bSxWxqfhIYE/видео.html
Ray Optics 07 : Magnification - Magnification & Mirror's Formula Best Numericals JEE/NEET
ruclips.net/video/P2pLDPj-DWk/видео.html
Ray Optics 08 : Combination Of Mirrors - Concept of Virtual Object JEE /NEET
ruclips.net/video/GLBzqqpcRF4/видео.html
Ray Optics 09 : Velocity in Spherical Mirrors - Velocity Of Object & Velocity Of Image JEE/NEET
ruclips.net/video/IHL0rxbPWJo/видео.html
Ray Optics 10 : Refraction Of Light : Snell's Law & Refractive Index JEE/NEET
ruclips.net/video/VimYgbSw28g/видео.html
Ray Optics 11 : Real Depth and Apparent Depth - Complete Concept with Best Numericals JEE/NEET
ruclips.net/video/rUi_chxd_qE/видео.html
Ray Optics 12 : Refraction - Shift through a Glass Slab : JEE/NEET
ruclips.net/video/18DZxFMlNqE/видео.html
Ray Optics 13 : Critical Angle and Total Internal Reflection - TIR - JEE/NEET
ruclips.net/video/GIv3PN9vcR8/видео.html
Ray Optics 14 : Refraction through Prism : Concept , Numericals & Minimum Deviation Case JEE/NEET
ruclips.net/video/DnC5-gM81qc/видео.html
Ray Optics 15 : Refraction from Spherical Surfaces - Formula - Derivation and Numericals JEE/NEET
ruclips.net/video/SZm0KLuRpKI/видео.html
Ray Optics 16 : Lens - Introduction : It's Types , Optical Centre , Focus , Focal Length JEE/NEET
ruclips.net/video/-K9yueGZ5pI/видео.html
Ray Optics 17 :Image Formation By Convex and Concave Lens for different Positions of Object JEE/NEET
ruclips.net/video/jJB4roc5n2E/видео.html
Ray Optics 18 : Lens Maker's Formula - Derivtion and All Types of Numericals JEE/NEET
ruclips.net/video/KYHt5Dxza5Y/видео.html
Ray Optics 19 : Magnification - Magnification & Len's Formula with Best Numericals JEE/NEET
ruclips.net/video/_E_6EcA6Kr4/видео.html
Ray Optics 20 : Combination of thin lenses in Contact II Cutting Of Lenses II Power - JEE/NEET
ruclips.net/video/8i1_zA336Pc/видео.html
Ray Optics 21 : Silvering Of One Surface Of Lens - Silvered Lens JEE/NEET
ruclips.net/video/3eX52D-7G80/видео.html
Ray Optics 22 : Microscope - Simple Microscope & Compound Microscope - JEE/NEET
ruclips.net/video/-QIximwdKYI/видео.html
Ray Optics 23 : Telescope - Refracting Telescope & Reflecting Telescope JEE/NEET
ruclips.net/video/n8nCGAg3AuU/видео.html
Sir ab apki tabiyat theek hai.
Sir mene kuchh donate kia h sir....sir agar appka tabiyat thik nehi jaldi achhe banjao aur lectures daaalo...9327***62641 transaction id thru paytm
@@enjoytoday3360 bhi sir ku nahi aa rahe ????😭😭😭😭😭
Sir lecture ke notes nhi khul rahe hai
I have completed this lecture on 2 December 2019
*Sir Even The TELESCOPE CANNOT FIND A BETTER TEACHER THAN YOU*
😊😊
Aditya Sharma nice ... but sir jaise aur bhi honge
Sonit Mehrotra hmm possible hai .
@@Rahulsingh-theraha lekin itna achha free me nahi denge
Sarang K I meant ki teacher ( offline included) ho sakte hai.but yeh free Mai koi nahi padata pure dedication se like sir
I agree
Giving High-five 👋 to those who finally completed their Ray Optics 😉
😀😀
Finally
🖐🖐🖐🖐🖐
It was a journey of many exciting phenomenonas
@@afanofrailway4KHDR i am starting today
*The Physics Man Of India*
💥💥Congo For 3M💥💥
you mean sir ab PM bn gaye...
ruclips.net/video/gGy21YXz8AE/видео.html
Subscribe this
Sir is not only the physics man of india but he is chemistry and physics man of india
Bhai sir January tak 12th physics ka syllabus kara payenge ya nahi
ruclips.net/video/X1rTwfWW0Bc/видео.html
The feeling of completing all 23 lectures is just gives everlasting pleasure...😅😅
😁
Well for boards on 13 are there to be completed. 😀
I completed all in 3 days
@@potential82 bro i completed in 2 days
@@MR--360 Nice🌟
So congratulations finally we completed this lengthy and conceptual chapter 😍😍❤️👍
Bhai complete hai kya is playlist me ray optics ?
@@kunalphapale7635 hnn
@@kunalphapale7635 han
Noo...
There are som topics left..!!
@@kunalphapale7635 Hann bilkul
3:40 - Visual Angle
13:00 - Refracting telescope
31:50 - Case1
35:35 - case2
37:40 - Length of telescope
39:40 - Summary
41:35 - Q1
46:50 - Q2
57:45 - Problems of refracting telescope
1:07:50 - Reflecting Telescope
✌
@@NKumar-sp3lp r u in class 12th board exam on 20th ?
@@NKumar-sp3lp which board ??
@@NKumar-sp3lp and how was ur exam ?...
@@NKumar-sp3lp ohh okay !
Books me to trestrial telescope aur Gallian telescope bhi hai par se nahi discuss Kiya to kaise khtam ho gya chapter 😕😕😕
Time Stamps -
03:40 - Visual Angle
13:00 - Refracting telescope
31:50 - Case1
35:35 - Case2
37:40 - Length of telescope
39:40 - Summary
41:35 - Question-1
46:50 - Question-2
57:45 - Problems of refracting telescope
1:07:50 - Reflecting Telescope
Thanks❤
Thank you❤️
Thnks
Thank uh so much yaaraa....🤗🤗🤗
Thanks
Sir, I go to Narayana school, but your teaching is so much better than other teachers. Your teaching is so amazing that I can't even explain. You understand where we get stuck and what we don't understand. Unlike other teachers, you explain the concepts so beautifully that some students who didn't use to like physics, have now made it their favourite and the strongest subject. You are the best of the best teachers sir. We all wish if we could meet you sir. U deserve more than a trillion subscribers. Love you, sir. Thank you so much for doing all this for us. We always wanted a teacher like u. Once again, thank you soooooooooooo much sir. We all love u for your kindness, cracking jokes, your singing, and teaching the way like no other can. WE LOVE YOU, SIR!!!! Let God give you everything more than what u deserve.
Me to in narayana
Ye narayan school kanha hai@@dreamer5041
I too
यूट्यूब में अगर एक चैनल जिसके वीडियो देखने से पहले लाइक करने का मन करता हैं...... वो हैं physics wallah..... Thanks sir for creating this believe...
ruclips.net/video/X1rTwfWW0Bc/видео.html
Salute to those who finally completed Ray optics today😊 congratulations guyssss♥️
Namaste sir..... my name is kanishk Sharma and this is the first time I am commenting on any you tube channel...today I have completed all the lectures of class 11th and going to start the lectures of class 12 from tomorrow onwards....I am watching your videos continuously for the last 3 months...usse pahle lagta tha ki mujhe zindagi mein kabhi physics samajh nhi aa sakti ... I am a dropper ...mere hamesha coaching ke tests mein 60 to 70/180 score rahta tha...but aapki videos dekhne ke baad mera score for the last 3 months is always above 150/180...great job sir ....mera bhi vision kuch aapke jaisa hi hai....is desh ke liye main bhi apna contribution dena chahta hoon....ye saaari baatein isliye like raha hoon kyunki ye mera first and last comment hai on you tube.. aapki sabhi videos ko ❤ se like karta hoon...is year ka neet topper physics wallah branch se hi niklega ye mera aapse waada hai....ab neet ke baad hi aapse mulakat and baat hogi....luv u sir❤...pata nhi aap comment padhoge ya nhi...agar padho to like ya comment kar dena so that I know ki aapne ye msg dekh piya hai....
isko 200 rupay do aur 50 rupay kaat overacting ka
@@prakharsingh6843 sahi kaha
Damn bro that's lit but who asked tho?
@@prakharsingh6843 bhai tu dope hai 😂🔥
@@prakharsingh6843 LIT
_So , You get a different kinda magical happiness when any chapter gotta be completed and Numaricals get done by you ! Thank you SIR , we all owe YOU !_
"Helloo bachooo.. Kya hallchal" The most loved words! ❤😁
from which class you are
@@alkachauhan7964 11 bro! And you?
But this for 12 class
@@priti2657 no its in 11 class in nepal! 😊And i am from nepal!
Ooo it means tumlog india se ek kadam aage chalte ho
The worst thing that happened in my life was that i found you very very late and the best thing that had happened in my life was Even though it was late, I found you☺
Thank u sir..so much
me also
ruclips.net/video/X1rTwfWW0Bc/видео.html
Emotions much?
Same here
Maine toh physics chod diya bcoz mere pass classes me deneke paise nhi the aur na mobile phone mughe samajh me hi nhi aate tha physics but ab alakh sir ka video mila hai but bohut late hogaya hai !😣
Download lecture Notes from physicswallahalakhpandey.com/class-xii/physics-xii/09-ray-optics/
Sir please ab video frequency badha do🙏🙏🙏🙏🙏🙏🙏
Sir congrats for 2 million subscribers
Sir kya ye akhri lecture h? Plz reply sir ji.
Congratulations for ur 2m subscribers sir .🙏 Love from Karnataka, Bellary. 🙏
🙏🙏🙏🙏🙏🙏🙏 kuch kahane ko hai hi nahi esashe jayada
completed full ray optics within 11 days as I am in rush to complete my syllabus for term 2 boards, even though in rush every topic is crystal clear now all thanks to allakh sir ❤️
Mera toh 8 din mein hogya 🤣
@@rakeshsingh-vu5wd legend here completed in 2🙃🙂
@@smashmash3455 bro u are not only legend are ultra legend 🙄
@@rakeshsingh-vu5wd 🤣🤣Thanks
@@smashmash3455 u are pro max ultra legend
Chanda mama,
Jupiter chacha,
Venus mami🤣🤣✌🏻😜
@Ok Ok nhi
Guys tum log to mere Se phle bhi padh liye Mai to aaj ki telescope 😶
Suraj dada ji honge fir to😂😂😂
@Sandhya Mashru..
mama chacha ab ni hai..
Ab BABITA ji..hai🤞😂
@Ok Ok ho gya bhai ek baar cbse ki official website p deleted syllabus check to kro
20 lakh students = 1 teacher = hard work and determination THIS IS PHYSICS WALLA..😍😍😘😘😋😄
SUPER 10 CLASSES dont spam brother
There are other teachers also
38 lakh now
@@jha._.ji2111 51 lakh + PW org ( biggest nd best ❤❤)
61 lakhs
Kitne hi saal beet jaye ....kitne hi naye video aajaye
Akhir me alakh sir k paas hi laut kr ana h🙏🏻
compound microscope aur refracting telescope mai se konsa kru ..plz bta do
@@finisher2092 🥲🙃
Finally guys today all 14 chapters of phyiscs completed
This is the end of journey with alakh sirs old lecture and hello baccho
I wish all my hard wark pays off this is a overwhelming moment for me,
I wish my mans legacy continues every year with new students and same hello baccho.....
where to study semiconductor bcoz sir haven't completed that
plz reply
@agaming11454 sir has done it search it, is on other playlist
Our savior before exams...
Ek hi to dil Hai sir...
Kitni baar jitoge!😄😅
How many students of Alakh sir want that he should publish a fantastic reference/mcq practice book📚 like that of D. C. Pandey sir and H C Verma sir
I am agree with your opinion
Pehle iss saal physics ka syllabus complete karane ka sochen .... Phir kuch aur karenge ..... Jo students inse ummed lagayen baithe hain unka ek saal aur waste hoga ... Ham jaise log nikal jayenge par gareeb phir se harjayega hamare paise ke samne jo sir nahi chahte the .. par unki koshish uss tarike ki nahi rahi ....
@@night67_5 yes..😕😕 syllabus jaldhisa complete hoona...😟😟
@@night67_5 Kya sir jitna padhaaye utna acche pad liye kya tum log 100% question kar loge kya. Itna hard work, sirf imagine kar ke padhana not a easy work. Syllabus ki tension nhi hai kyu ki jab sir itna kiye to syllabus bhi jaoor complete karenge....
@@kalpanasingh_2215 hn cause physics is only subject in which sir is required... Syllabus pura to karenge par tab tak bahut der hojayegi....
Total Lecture (23) Duration of Ray Optics Chapter - 22 h 36 min 36 s
INDIA'S FUTURE IS THE BRIGHTEST due to the people like you ....
Started this chapter with zero knowledge and understood everything , credit goes to alakh sir❤.
I hold the record of having highest number of classmates
#physicswallah
ruclips.net/video/gGy21YXz8AE/видео.html
Subscribe this Channel important
Bilkul bro hamare batch 2018-2020 physics wallah sir starting se sath the hr ek video hamare journey k sath dlta raha we are very lucky
Yaa bro
I have 6.66M classmates ❤️🔥
@@crazyunboxer485 🔥🔥
Many many congratulations🥳 to those who completed this lengthy chapter✌✌✌
Bhi ray optics smjh liya kya 😣
@@Amit_Gaming_YT-76 yes brother 🙂
No one
Literally no one
Alakh sir: Venus mami
😂😂😂😂
Ha
*YEAH 2M FINALLY CONGRATS SIR..*
@Dr.Shubhi Yadav urf Shubs apne kabse dhyan laga rahi hai
Sir , with lots of love and respect , congrats to you for 2 million subs or in your language ' bachho' 😁. The journey started from 0 to 20 lakhs from
English to hindi
From teacher to a celebrity teacher
Other teacher say , i teach in Allen , resonance, aakash ,etc
But our pw teaches to an institute called 'children of India' which has 20 lakh students
May this no grow to 20 million n more
Keep teaching and enriching us
I was worried that how would i end this chapter easily with full understanding . But if alakh sir is there everything is possible.😅 blessed to have u as our physics teacher❣️god bless u sir😇😇
Congratulations to all those who didn't give up, and completed the 23 lectures 🎉 you're awesome,wish u all the best❤
Hey are these lectures enough for neet?
@@cherry_here well, I think he teaches really good and if you understand the concepts, solve any modules or some good question books for practice, this chapter will be ready 👍
@@strugglealone666 thanksss👍🏼also has he covered all the topics?
@@cherry_here yes, I think
A - Adorable
L - Lovable
A - Amazing
K - Kind
H - Harmonious
Congrats For 2M Subscribers Sir❤️❤️💥💢💥🙌🏻
UNDERRATED
H for humorous
great
Sir pls come live for 2 million Subscribers Congrulations Sir......
Mast sir
Yesss
@@sunchess5950 chup
@FALCON yess
now 9.16 million
Finally dosto ho gya 23 lecture completed 🎉😊
Congratulations to all our classmates (physics wallah students)
For being 2M
5M
5.85M
Are you guys still alive 🙂
Refracting telescope starting = 13:00
Derivation of Refracting Telescope end = 37:33
Length of Telescope = 37:45
Derivation recap = 39:40
Numericals = 41:30
Disadvantages in Astronomical or Refracting Telescope = 57:45
- Spherical Abbereation = 59:22
- Chromatic Abbereation = 1:02:25
Reflecting Telescope = 1:07:50
Ty🤗
Best thing in him is he never ask anyone to subscribe his channel in his videos. And now he is the most popular one .. Phy wallah❤❤️❤️....
Swiftie?
@@foreverandalways6489 yeah
Congratulations guys who completed Ray optics for term 2 boards 2022🎊🎊🎊
The whole session has come to an end 😭 and it's a time to say good bye to the the journey of2 years with you and whole PHYSICS WALLAH family ....hope karta hu ki graduation Mai bhi aapke jaisa teacher mile but it seems quiet impossible 😭😭...end Mai sir bass lots of love and respect ...
bro agar drop krna pada toh ??
ruclips.net/video/X1rTwfWW0Bc/видео.html
Bhai... Dil se yahi emotions mere bhi bahar aa rhe h yaar... I cant imagine how it would be to study from those boring physics proffesors in college
Bhai 7 mahine hogye,kaha ho tm??
Full इज् जत।।।।।
How many of you want that sir will introduce a book of physics which contain all concept + numericals for jee/neet and board. Like h.c. verma😍🔥
Your conspiracy theories are going to be real 😅 ..my module are about to arrive
Sir, you are doing some really nice work and it’s the last stretch now, only a few months left. All your students need you to help. We have been trusting you since two years when you promised us you’d help. Your 2 million students need you to keep your word when you said you’ll finish your portion by December. I know you’ll never read this, but if you do, it’s just a reminder of how awesome you are and how many people love you all across the country :)
It's SUCH a GREAT feeling to have this biggest unit of class 12th completed 😅 from one of best Teachers💯
Really when I searched for this chapter on physics wallah , on seeing 23 videos playlist I thought how I'm gonna do it !!! BUT now when I hve completed this chapter in 5 days it's such a satisfactory😃 feeling ever🎊🥳🥳
ALL THANKS TO U SIR💫
I have completed these 23 videos in 3 days with notes
@@harshpresents679 pucha kisine?
Competition thodi horha hai idhar
@@tusharyadav3769 me sirf apni efficiency bta rah hu muje bhi pta hai yaa competition nhi chal rah bhailye hi kisi ko ek mahina hi kyu na lage complete krne me muje usse kya
@@harshpresents679 really 😧
@@Kashish-u3l yes really how much time you took
Biggest satisfaction after completing Ray optics by alakh sir😄
Me one also😀😀😀
I have completed in 3 days...😃😃
@@physicswallah9843 it means you have seen only lectures in 3 days that too only of physics..🤣
@@nayanghodke4161 yes u r somewhat correct actually when I study from alakh sir my curiosity to know abt what next in another lecture increases so I complete all the lectures as soon as possible but I also attended my online chemistry n physics cc offline maths cc n joined my schl online classes n also revision of the topics taught in cc...😁😁😂😂😒😂
@@physicswallah9843 oh nice 🤘
A-Amazing
L- Laborious
A-Awesome
K-Kind
H- Hard working
Inspiration for young generations
" Hello baccho"
🙂🙂😇😊
Nice
beautiful
Gdd
Nice
Sir pta nhi kyu but dil me aapki ek alag hi jagah hai 🙂 ...
00:10:49 - 00:11:04 Funniest thing in whole lecture meri to gf hi Chand jaisi Hai.. 🤣 😂..
Watching in lockdown and there is no message of opening of schools. But sir Ur all videos of physics helped me a lot in this pandemic of covid..... Thanks a lot sir.. u are the best teacher I have ever seen ....🤩🤩🤩
Bahi tumhara tho cancel ho gay humara 2022 valo ka rahaga
1:02:54
alakh-alakh colour of light ki alakh -alakh wavelength hoti hai . Yani alakh-alakh colour ke liye refractive index alakh-alakh hoga, jab refractive index alakh hoga toh alakh-alakh colour ki bending alakh-alakh hogi.😘
Samajh rahe ho ?? 😄
_ Nahi samajh rahe ho 😂
ruclips.net/video/l9ztBnqy-NA/видео.html
ruclips.net/video/X1rTwfWW0Bc/видео.html
How funny 😀😀
Aare kehena kya cahate ho...
#3ediots
Alakh = Alag
12 December 2023
Finally I completed optics
Our jorney was started from 6.6M student and it finished with 1.6M students
I am feeling so happy because I am also belong from remaining 1.6M student .
Thank you sir ☺️☺️☺️
This man is really a legend..Imparting quality education at such affordable prices and starting from such a humble background and has reached great heights of success..You really are an inspiration for many Alakh Sir..Kuch to khaas baat hai aap mein jo aapko dusro se alag banati hai!!!!!
Chanda mama, Jupiter chacha and venus mami, special members in 2M😂😂
Mercury BHABHI bhi😂😂😂😂
@@gaurithakur6191 😂😂nice yrr
Ek no.
@@Karanssharma03 tnxx😂😂😂
Elon musk baba bhi
You are a teacher that is impossible to find today!!ur sacrifice matters to a lot of students❤
Finally done.
Satisfaction on completing that much lengthy chapter just because of u only sir 🙌
No words 😗
Tnq so much sir ☺
Yes...just becoz of sir we enjoyed it and also understood each and every concept...
🌟✨Salute to sir✨🌟😊
Finally this big chapter completed 😊😊😊
Ohhhkkk
I love the way u teach sir... So not formal which helps to retain in memory for long time
2 Million ka hogya sirji "Hmara aapka chota sa pyara sa channel PhysicsWallah" ❤❤😍😍😘🙏🙏
2 million family
A real family ❤️
Congratulations 🎉
Finally This Chapter Is Done By My Side ..
Feeling so satisfied :)
Thank U So So Much Sir 🙏🙏🙏
Best teacher of physics I have ever meet 🥺🥺❤️❤️....first time mujhe ray optics itne ache se smjh aayi 🥺...thnku so much sir ❤️
Saare concepts clear ho gye 😁...after viewing 23 lectures of ray optics ...🤭😅
23 din se lecture dekh raha hu
@@dj_7118 mujhse bhi aise hee time laga tha ....but 23 din bhi nhi 😂😂
@@simransahni2058 mera aaj khatam ho jayega lecture🥺
@@dj_7118 22 aspirant ho?
@@simransahni2058 yes
"Meri do girlfriend chand jaise hain" 😂😂😂🤣🤣🤣10:52
Best explanation of concept with awesome 👌😎 comedy sir.
Sir ye tho seen create ho gaya 😂😂😂
😂😂
Finally completed this chapter! Took me about 40 hours to complete this series. But I am glad that I finally finished it. Now I am able to solve my coaching's module.. Thanks a lot sir❤❤
Exam se pehle humara power booster
Sirf alakh sir❤️❤️❤️❤️
खोया हुआ दौलत
खोया हुआ विद्या
और खोया हुआ स्वास्थ्य
फिर भी लौट सकता है
परन्तु खोया हुआ समय
कभी नही लौट सकता।।
इसलिए मेरे मित्रो अपना समय कभी भी मत बर्बाद करना।।
गजब
I agree 👍💯
thank you so much sir ...for so much support....if i will clear my medical entrance examination then the whole credit will be given to you only...as my physics and chemistry doubts and concepts are clear only because of you....i really respect you so muchh...#loveyousir
did you clear neet?
I reading comments of students 2years back
They are congratulating him for 2 million
And now Meanwhile my Mind thinking of his 8000 crore physics wallah with 8.5 million subscribers
Soo..
Physics wallah is a brand
hence proved
Congratulations for completing all the lectures
9.1 million subs now... it is indeed a brand
@@Siya6471 ur in 12th?
@@thatoldmacdonaldfarm621 yep why?
bro 9.8 now :)
Finally completed ray optics on jan 1 2024, great way to start my new year.
Thank you sir ✨
Bro please tell is this series is sufficient for neet 2024 please bro
Bro human eye syllabus me he kya
Nhi@@sumanvaishnav829
@@sumanvaishnav829 nahi
@@RavishankarYadav-jy3vj you will have to practice more questions
Sir k 2 million subscriber just now first to say itt..great journey with you sir 10 million tk Le jaege channel ko sir AP bhgwaan s bhi bhut bdkr ho..Hit like..💪💪👍👍👍
The total no.of numericals solved by sir in the full session of ray optics chapter is 74
Sir ye topic aj tak clear nahi hau that aj ho gaya
Tqqqq sir
Can't go without thanking uh... thanks a lot sir tomorrow is my exam and this topic felt so difficult to me. I was literally crying but then I consoled myself and watched ur lecture. Thanku so much sir 😭💗🫶🏻🙏🏻🙏🏻
PHYSICS WALLAH🎀 congo🎀 for becoming the most loved youtuber ✨....Now have 2M lovers🎊🎊🎊🎊🎊🎉🎉🎉
CONGRATULATIONS ON 2 MILLION SUBSCRIBERS SIR! JUST KNOW THAT YOU'RE THE BEST TEACHER ANYONE COULD HAVE, WE ALL LOVE YOU SO SO MUCH AND WE ARE ALL SO HAPPY FOR YOUR SUCESS, WISHING YOU LOADS OF HAPPINESS AND SUCESS YOUR WAY ❤️❤️
Like if you want Alakh Sir to come live.
Congratulations for 2M subscribers sir,And By seeing your lecture on Microscope and Telescope,I was able to know the concept.Thanks and continue making such wonderful videos.
Finally completed this chapter .... 🔥🔥 i am very happy and satisfied with this .. thanks sir🙏🏻
I have only completed the lectures rest all learning part is still there🤕
@@astro.jibitesh true
This is literally my happy place, i come here everytime i need a real feel of the concepts and after watching the lectures i am so clear with it. I love watching your old videos sir, it helps me lott. Thankyou so much. :)))
Enough for neet 202
Finally completed this long but easy chapter coz I have studied it from our one nd only alakh sir ❤️❤️
10:58 I paused and laughed for one minute 😂😂😂
25 cm uske होठो के पास😌
Maii bhi 🤣😂🤣😂😂😂🤣😂😂😂🤣😂😂😂🤣
Finally Completed. ❤️Lots of love Alakh sir 💜
U r a legend ❤️💐...
10/11/2024...
After see your telescope video I remember my tution physics teacher who teaches like you and I understand telescope fully.
Beautifully explained Sir. Thank you so much!!
At 53:40 sir ne u -ve Kyu n liya 1\f wla formula me?
Finally done Ray optics for NEET 2025🙏🩺🙏
Can you do all the pyqs?
@@Cascade1_0 Yes l do all the pyq's and module also..
Lots of videos are available in you you tube but real satisfaction isi lecture se mili finally optics completed no fear now in this topic for upcoming neet exam 23❤
16/6/20
Thank you sir ji 💓💓💓💓
Itna pyar se samjhane ke liye 💓💖💓💖💓💖💓💖💓💖💓💖💖
Really sir you are the best and one of the most dedicated and student centric teacher.
You have never said like my videos and subscribe and this makes you very unique
I literally finished this playlist in 2 days oh god you're such an inspiration sir 🙏🙏😭
How you completed in just 2 days 😅
@@afrinaparveen9645 Me in 3 with proper notes and solving questions on my own..
finally I completed all lectures in 4days with notes and all questions 😅 thank u sir for providing amazing lecture 🙏this platform proud us to be Indian because of equality 🇳🇪🇳🇪
It's wrong 🇳🇪.it's 🇮🇳
Never thought that this comes to a webseries physics wallah just 🥰🥰
October, 14 2022
Time-8:00 pm
Completed this unit 😌😌
My heartiest congratulations to you sir for your 2 million subscribers..!
This guy is great! He should start his own company and change the education system ❤
Yeah hope so😂
A moment of silence for those who think that this is deleted from syllabus
Is it not?
Actually Ithought it is deleted from the syllabus and I was studying it only for competition. Will you further explainhow much syllabus is removed from this chapter. I have seen the pdf but it's not clear
@@siddhisahu2208 These are all the topics of ray optics that are not going to come in boards
- Reflection of light,
- Spherical mirrors,(recapitulation)
- Mirror formula
- Scattering of light - blue colour of sky and reddish appearance of the sun at sunrise and sunset.
- Resolving power of microscope and astronomical telescope,
- Polarisation
- Plane polarised light
- Brewster's law,
- Uses of plane polarised light and Polaroids
Even I thought it was deleted until it came in my 1st pre board paper😂😂😂
@@siddhisahu2208 Bhai PDF bhej do na
“I can no other answer make but thanks, and thanks, and ever thanks.”
Thank you teacher.
Sir very very congratulations to you and all our physics wallah on becoming a family of 20 lakhs
Really amazed when I noticed in cassegrain telescope the convex mirror is forming a real image since the reflected ray are actually meeting😲😲😲
Sir u is the best thing happened in my life . Love you sir .❤
ek dam sahi bola bhai
Friend- So how many students are there in your physics tuition
Me- It's kinda complicated
Btw this is a very old meme also
@@abread1094 🤣🤣🤣
2M+
SUPER 10 CLASSES why?
Epic Memer Btw your reply makes no sense at all
Tysm Sir....aapki vajah sei meri Ray and Wave Optics complete ho paayi...!!!!
39:42 Refracting Telescope
Summary❤