Ray Optics 15 : Refraction from Spherical Surfaces - Formula - Derivation and Numericals JEE/NEET

[@PhysicsWallah]

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 KZbin) 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 kzbin.info/www/bejne/lZ-qi3qlacx7fdE Ray Optics 02 : Number of Images formeed by Two Plane Mirrors JEE/NEET kzbin.info/www/bejne/rn2wd6yOjbqZitU Ray Optics 03 : Velocity in Plane Mirror - Velocity of Object & Velocity of Image JEE/NEET kzbin.info/www/bejne/Y6vNqJ-cZtiDqrM Ray Optics 04 : Spherical Mirrors: Introduction :Focus ,Focal Length & Focal Plane - Sign Convention kzbin.info/www/bejne/hJWtdpeeaN12aLs Ray Optics 05 : Image Formation by Concave & Convex Mirror for Different Position of Object JEE/NEET kzbin.info/www/bejne/n3awgaWnmayDg7c Ray Optics 06 : Mirror's Formula -Derivation for Concave & Convex Mirror +Basic Numericals + Concept kzbin.info/www/bejne/mITbiKunm818j6c Ray Optics 07 : Magnification - Magnification & Mirror's Formula Best Numericals JEE/NEET kzbin.info/www/bejne/hmPTfXeGn5J3jc0 Ray Optics 08 : Combination Of Mirrors - Concept of Virtual Object JEE /NEET kzbin.info/www/bejne/fX2lq6SnpciFfJY Ray Optics 09 : Velocity in Spherical Mirrors - Velocity Of Object & Velocity Of Image JEE/NEET kzbin.info/www/bejne/f3mvYaWul7WKgNE Ray Optics 10 : Refraction Of Light : Snell's Law & Refractive Index JEE/NEET kzbin.info/www/bejne/jJrQipqYiNxlbsk Ray Optics 11 : Real Depth and Apparent Depth - Complete Concept with Best Numericals JEE/NEET kzbin.info/www/bejne/qIbMkJaercmSp6c Ray Optics 12 : Refraction - Shift through a Glass Slab : JEE/NEET kzbin.info/www/bejne/Z2mni6t8gtGBp6c Ray Optics 13 : Critical Angle and Total Internal Reflection - TIR - JEE/NEET kzbin.info/www/bejne/fXrZZIOEbtuWiJo Ray Optics 14 : Refraction through Prism : Concept , Numericals & Minimum Deviation Case JEE/NEET kzbin.info/www/bejne/ep-mZmCdgp1kp8U Ray Optics 15 : Refraction from Spherical Surfaces - Formula - Derivation and Numericals JEE/NEET kzbin.info/www/bejne/iYvQYX6Cqrejgas Ray Optics 16 : Lens - Introduction : It's Types , Optical Centre , Focus , Focal Length JEE/NEET kzbin.info/www/bejne/Y3ycqqibfL9opqs Ray Optics 17 :Image Formation By Convex and Concave Lens for different Positions of Object JEE/NEET kzbin.info/www/bejne/oHulZaWlmJqhaKc Ray Optics 18 : Lens Maker's Formula - Derivtion and All Types of Numericals JEE/NEET kzbin.info/www/bejne/gYqrpWh6rd-Ua7s Ray Optics 19 : Magnification - Magnification & Len's Formula with Best Numericals JEE/NEET kzbin.info/www/bejne/lXbCZ3iZdpt-qJY Ray Optics 20 : Combination of thin lenses in Contact II Cutting Of Lenses II Power - JEE/NEET kzbin.info/www/bejne/bpqUkK13aJhphsU Ray Optics 21 : Silvering Of One Surface Of Lens - Silvered Lens JEE/NEET kzbin.info/www/bejne/aZa7ZmV6Ypx6bpI Ray Optics 22 : Microscope - Simple Microscope & Compound Microscope - JEE/NEET kzbin.info/www/bejne/Y4KsqZyjrMl-j6s Ray Optics 23 : Telescope - Refracting Telescope & Reflecting Telescope JEE/NEET kzbin.info/www/bejne/pGnRdHp3nJh0q7c

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Hii

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Full support to alakh sir

[@tanaramchoudhary4149]

sir videos ki frequency itni kam kse ho gyi??

[@kuriouskid1285]

Thank you sir!❤️❤️❤️❤️

[@kuriouskid1285]

@@tanaramchoudhary4149 hoga koi dikkat

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is whiteboard ko exhibition mein rakh dena chahiya taki ane wali generation bhi jan sake ki there existed a great legend by name of alakh pandey sir who changed the system of education and brought a revolution in society.hats off to u sir for your hard work!!!!

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correct

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Behen kuch jyada ho gya 😒😒😒

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@@anantsingh2408 FACT: sabi physics wallha videos ki comment box kuch jadi hi hogi😂 #funfact

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Yeh thoda jyada ho gaya

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bhai is whiteboard ko isliye bhi exibition me rakhna chaiyae kyuki ab to dheere dheere whiteboard bhi gayab ho rahe hain sab digital board use kar rahe hain.

[@HarshitaSingh-ox1vs]

Refraction by spherical surface is now in my grip sir and topic is now crystal clear.... Thanku sir for giving me energy by saying hello baccho 👏👏👏🙏

[@JaishreeRam25987]

Hi harshita

[@JaishreeRam25987]

Kya tum mujse baat karogi

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Can you become friend of me

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Where are you from

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Maa ke ladle padh le

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Hallo bachoo so loud that my whole family come to know that I am going to study 🤣🤣

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Oh lol😂😂

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Lmao😭

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@Shreshth Maurya same here🤚🏻

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@Shreshth Maurya same scene here 🤧🤧🥺

[@shubhamranjan3]

Its 4.10 am in the night i haven't slept, there are many few videos and lectures available but studying from alakh sir the concept directly goes in heart and mind,you have saved a millions of future Sir, and i can bet that even coming decades students will watch your videos and learn the best of the best.. thanks you alakh sir ,you are adorable and a absolute legend,we all love you till infinity ❣️✨🥺❤️

[@sanjana9974]

Are you neet 2022 aspirate??? best wishes to you ❤️all the best 😊

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@@sanjana9974 no jee aspirant...but tomorrow i have my boards exam..🥺

[@sanjana9974]

@@shubhamranjan3 all the best 👍🏻you can crack it 😊

[@shubhamranjan3]

@@sanjana9974 All the best from my side too..you too will crack what you want to be...🙌

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​@@sanjana9974 I love you ❣️

[@Futurelifeofmy]

In this time, there are many teachers on KZbin but still u are the most loving teacher and Aaj bhi mai sirf aapse padhti hu sir

[@letslearntogether622]

Watching whole playlist for 2024 neet And 2023-24 boards❤

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What is your score in neet ??

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Iss white board ko kisi museum me rkkh doo exhibition k liye taaki hum log apni old age me yaad karen ki once upon a time there was God of physics named alakh Pandey who brought the revolution!!!Literally yr ye Banda bhaai ek din NTA ka head hoga dekhna yr bahut tarakki karni hai inko he is too good genius he proved that knowledge makes the bloody difference har iitian successful nahi hota aur har successful person iitian nahi hota hats off to u sir lots of love bahut baccho ki dua lagni hai aapko 🌟❣️🤞💥💯🙌....

[@PhysicsWallah]

Download PDF Notes soon @ physicswallahalakhpandey.com/class-xii/physics-xii/09-ray-optics/

[@07shivam10]

Hello sir ji

[@07shivam10]

Namaste

[@nishantkumar8522]

सर आप बहुत मेहनत कर रहे हैं सर आप हमारे लिए इतना मेहनत कर रहे हैं सर आप को तहे दिल से धन्यवाद सर आप हमारे फ्यूचर के लिए कितना मेहनत कर रहे हैं सर थैंक यू सो मच सर

[@sahilmishra6124]

Pranam sir🙏🙏

[@viraj.santosh.chandratre7276]

How is mtg for neet?

[@aatifakhan8901]

tried so many one shots to understand this but like always ended up here, cant thank sir enough

[@megamewtwoy9316]

same buddy same

[@TheFriencher]

Same here

[@ayushaswal6070]

After watching 20-30 videos of sir. Alakh sir: " Haallo bachho" Students: "Haallo Sir"

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your name is relatable...F

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In my perspective, mute before you start. RIP EARS :}

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😂😂😂

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I skip that part

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@@jacktheripper7257 why 😶

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Alakh sir is the best teacher be it of phy, chem Or our life ✨ He's a gem of a teacher 💎❤❤

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No

[@Random2aslam]

Bhai aapne 4 year pahle sir se padha tha aapka selection huwa ya aap kuchh aur karne lage NEET/JEE ke alawa

[@rohitdutta7625]

Happy Saraswati Puja sir🙏❤️ Humare liye toh aap hi Saraswati ho..Aap humein gyaan dete ho ❤️☺️ Thank you very much for all your efforts sir☺️🙏🙏❤️

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🙏🏿

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sir it is only your magical teaching style , that i have been learning continuosly phy,chem since class 10 from u. lots of love and respect.

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Very helpful vdo🎉 Thanku so much sir❤❤❤

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The lectures which never gonna old ...❤❤❤

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after making the playlist i directly like all the videos without seeing the topic of lectures. when someone:- Where is god?? Me:- god is everywhere....physicswallah is emotion of all of us ,within us... truth:--i was scoring below an average in physics...After lectures i am getting 160+ in physics which is considered as too tough. simply GOD OF PHYSICS Alakh sir..... love uhh sir

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There are 14 episodes in this webseries.main actor - the great alakh sir shooting invest ment = 0$,camera man- chair with dandi😅co actors- object,image,glass slab,prisim,lens.shooting dialogue- ligh-camera-refraction

[@prajwal6495]

Sir please thoda video frequency badha dijiye Kyunki main agar khudse ya kisi aur channel se padhne ki koshish bhi karta Hun to .....fail BTW thanks 🙂 Jai Hind 🇮🇳🇮🇳🇮🇳

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Bhai tereco har baar heart kyon dete hain Sir . Tune join kiya hai kya

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@@ordinaryunique8826 yess

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Same😭

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@@ordinaryunique8826 kya join kiya h batana koi ?? 🤔🤔

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@@mayankpandey5079 he is talking about membership of this channel or the batch

[@studysmart5790]

I m from Nepal but also i prefer Alakh sir . He is a good explainer ,I think Our Country Nepal should also have such teachers ... Really appreciatable way of teaching. Love you Alakh sir. Dherai Dherai Maya from Nepal❤️❤️

[@__DEVA__]

Momo

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❤❤

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it's 2022 when i am watching this masterpiece ⚡💌

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Me tooo🙂

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@@itzinsaane nahi bahan hai

[@ujwala1745]

Hello sir. Firstly thank you so much 😊 for providing such good quality video lectures through a platform which is easily accessible to everyone. I’m a jee aspirant and I’m in 11th. In the initial days of my jee Physics lectures I couldn’t understand anything and didn’t have affinity towards physics at all. But then when I started watching your videos things changed drastically and I improved a lot. You are doing a great job you are the best physics teacher ever I have seen in my life. Keep uploading such videos and sir please finish the whole jee syllabus before 2021 because this is when I’m going to give my jee exam. I’m dependent on you for physics as I don’t understand completely what my physics coaching teacher teaches in class. And sir a very humble request please please increase the frequency of video lectures of physics.

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Yess lecture's r very helpful

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I am in class 10th now for my Olympiad I am seeing alakh sir's video and the concepts are still being crystal clear.

[@anushkaasngh]

Sir 5 din se wait kr rhe the aage ka pdhne k liye... finally aaj daal diya agla part..🙏 Thank you sir ❤️

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Same here too😃

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intrested to study

[@kanchanshandilya2950]

Thik ha padho

[@taranisenpatra640]

Same

[@straylancer3172]

Hey

[@prakharrai114]

has anyone watched the apparent depth lec. in that we took n2 as jaha se light jaa rhi and n1 as jaha pe light jaa rhi....yaha ulta h na?....

[@prakharrai114]

so,agar waise yaad rakhna hai...so can we replace n2 by n1 and n1 by n2 in the formula... usse bhi aa rha h...as wo to sirf ek notation hai...

[@tileswarmahato546]

Exactly same problem which I have faced right now. I got confused between n1 and n2 ,as alakh sir techaed us in real depth and apperant depth. Then I start looking at the comment section, & I finally found you.

[@maidaiftikhar6901]

n2/n1 = d/d' where n2 is R.I( refractive index) jidhar se light aa rhi hai and n1 R.I of medium jidhar ko light jaa rahi hai.

[@jomainaahmed]

So what is the solution to this problem? Please help

[@jomainaahmed]

@@myselfs.2683 toh yeh sahi hain kya?

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You are the real example of struggle to success . Really respect for you from heart .❤

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It is just wowsome.......Thanks sir for supporting us........ Concepts Clear....... Keep it up..... 🙂🙂🙂

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Sir, Hats off to you for such a great work.......

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Sir pura concept clear ho gya . Thanku so much sir😊😊😊😊😊😊😊😊😊😊😊

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Really sir thank you so much for such a good teaching......you are tooo good👍👍👍😊......please keep helping and supporting students like this forever👍

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Sir physics is a magical number agr smj a gya to mst ha vrna to magic ho jata ha........... 🙃🙃😄😄😄🤟🤟🤟

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Sir you are the best teacher in this world no comparison of your,, only you are able to understand all students feeling❤️❤️❤️❤️😁😁😁😁😁😁😊😊😊😊

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Keep uploading videos daily.. It give 😂😁us happiness

[@anantdubey2136]

Sir jab hmne real depth and apparent depth padha tab we took n2 jisse light aari n vice versa but now in spherical surface refraction different,does this depend on derivation ,what we take during derivation? I hope u will answer.

[@rauneetagrawal5825]

Y baat to sahi hai

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Sahi kaha

[@nomatterwhataiims4389]

54:53 when sir saying - 22.5 at that time if you tap on time, the remaining time will show exact answer -22.50 😱

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Padhle bsdk

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No matter how old this vedio is it will always be fabulous.

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2 Million subscribers is loading ... Authenticity of concepts Power of physics wallah 💪💪💪💪

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Anand Kumar thakur 😂😂😂allen Authenticity of results Power of allen

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Jor jor se bol ke sabko scheme bata de

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Anand Kumar thakur 😂😂

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Allen walo ka modification hai

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Bhai aaj 4.39 hai 👍

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Physics in our fingertips only due to our legend alakh sir 🥰

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Ye cbse term 2 se deleted hai kya

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@@AjayKumar-lo2iw no

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Sir increase the frequency of videos im totally depended on you

[@rasidunnisha8094]

I agree...

[@PhysicsWallah]

Dont depend on me

[@vivekjaiswal5371]

@@rasidunnisha8094 bhai par ab sir ko kon samjhaye 😅😅

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App itna accha padhati ho ki kanhi aur mann hi nahi karta pahdnai ka

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@@PhysicsWallah Sir we are not dependent on you but sir kya kare.....

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Kitna pyar say aap padhata ho Sir.

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Aj barish ho rhi hay.. Aur Alakh sir ka lectures chal rha hay 😇😇😇💞💞⛈️🌧️🌧️🌪️🌪️aur "yass" storm bhi ho rhi hay. In West Bengal 😊😊

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Gzb...sir ke natural voice effects +his killer expressions..... 😂😎

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Sir pehle ray optics bilkul samaj nahin aata tha, par aapse padhne ke baad voh mera favourite topic ban gaya hai sir. Thank you so much sir.

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🙋‍♂️🙋‍♂️🙋‍♂️🙋‍♂️🙋‍♂️🙋‍♂️🙋‍♂️🙋‍♂️ kon kon chahta hei ki sir g diwali pe live aayein 👍👍👍👍👍👍👍👍👍

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Me

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Me

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Pls sir come on live on diwali

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me

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me

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Great concept clearance vido

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Helpful, best video. Thanks

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I just love physics sir bas apki wazase. Thank you so much

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Sir 5 din me aapke support and help ki value samajh me aa gayi..... thanks a lot sir Keep going👍👍👍

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Really very happy to have 3 million students family...... We Love u physicswallah sir 💜💜

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9.53m now

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Nice sir👍👍👍👍 You are very nice singer also...👍

[@Jasim_Basheer]

the best way to remember it is that wherever your eyes are that'll be n1 , this is for the apparent depth case and so the opposite for the spherical surface

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Sir you had given us a lots of powerful weapon from last four years A WEAPON to creat a history

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Thanks sir During my exams you are really helpful and supporting to me

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There are so many you tubers but this man still owns this place ❤️

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chup

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chup

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Why ya'all saying that? 😅🤣

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Anyhow... Chup

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Pucha kisine? Pucha kisine? Kisi ne nahi pucha

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Lecture completed👌💯😊

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This session us very helpful... Maine puri utube chaan li pr mujhe ye concept smjh hi nhii aa rha tha.....now the whole concept is crystal clear to me.....thank u thank you thank you so muchh sir.....u r a true legend..

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Ho gya syllabus complete ?😂

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Thanku very much sir ji

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"Chhee-chhee chhee-chhee" I like this moment most.....

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😂😂 It's too funny

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@@pandabagouda6092 Hello

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thank you sir for this wonderful lecture🥰🥰🥰❤️❤️❤️

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Sir aapke videos dekhkar dil or dimag ke sath fefde bhi khush ho jate thank you sir for videos ...... 😍😍 physics wallah lovers like thoko😍😍😍

[@sahilbhardwaj813]

Sir I just want to say that please complete 2 chapters that is optics and wave optics . other chapter can be done ourself for board preparation please. A humble request please try to complete till november mid

[@αρτα-ν3σ]

Agree

[@vartikaindora5906]

Bhai nov mid tak bohot mushkil hai. Sir videos kam daal rahe hain to matlab kuchh to problem hai. Waise sir ne december tak bola hai karwa denge. Tension na le. Ho jaayega

[@sahilbhardwaj813]

@@vartikaindora5906 haan shayad problem ha koi tabhi sir ki frequency kam ha video ki

[@rohinisharma810]

Pata nahi sir ka syllabus time par hoga ya nahi

[@himani2269]

You are very knowledgeable Sir. Thank you so much for explaining everything so clearly. I'm very comfortable with this topic after watching your video. My best wishes to you Sir. :) :) :)

[@tooba6892]

Only bcz of alakh sir I developed interest in physics 💖thanks alot for your efforts in making these videos and makes us the topic crystal clear Lots of love for you sir from the whole physics family of ur channel 💖❤️may god bless u with good health, more and more success in ur life 😊 and a long life full of happiness

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Best teacher for phisic any sunject

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point to be noted "jahan do rays milti hai wahan pyar ho jata hain 5:29"

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Bahut smart leg rhe ho😘😘😘😘😍😍

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anyone in 2024

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Me

[@Tdmb2]

jee ya neet .... mai toh neet

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Me

[@dikshakumari5412]

Very well Explaination.... 👍👍👍🙏🙏🙏🙏.....😊😊

[@gurbhejgill5274]

God of physics....thanks alot.........vry much......

[@shinnosukenohara5264]

Sir Aaj iss shirt me bohot dope lag rahe hai.....😍😍

[@plucky5555]

In previous chapters we took n2 as = jaha se ray aa rahi n1 as = jaha Ray Jaa Rahi In this lecture, why are we taking it opposite? n2 = jaha Ray Jaa Rahi n1 = jaha se ray aa rahi

[@abhish3k_tiwari]

Loved the sound ❤️❤️ 38:52

[@corporex]

When sir starts singing😆😆😆 not only me, but also my family memebers enjoys it soo much. Yesterday my mom started singing when i was listening alakh sir's magnetic ef...Video, there he sang " ik pal ka jeena". 😆🤭

[@rajraj-pu5uo]

Frequency need to be increase plzzzz a humblevrequest😭😭😭😭😭😭

[@Karanssharma03]

Yes pls🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@bhavyachampaneri]

Yes

[@vijaypal6548]

Hame lag rAha dropper hai Raj ji tabhi itni tezi se baag rahe Aur sir ko pressurised Kar rahe. Question practice Karne revise Karne me bhi samay lagta

[@rohinisharma810]

You are right Manish Bhai 😟😟😟😟

[@dromkaru4915]

Sir madat kar rahe hai vo bada samaj tu kya sir kon Paisa deta hai jo frequency badane konkaha raha hai mad-*':

[@NehaSharma-eo9lc]

Beautiful video :) you're our strength. Diwali wishes in advance sir. :)

[@SportsParadise_]

Same to u ,happy diwali in advance

[@parallellinesmeetatinfinity]

​@@SportsParadise_💀 ek saal Baad 👽

[@parallellinesmeetatinfinity]

​@@SportsParadise_happy diwali 💀✨✨😃

[@aashnaszone1731]

sir because of u i hv gained confidence in physics..so far so good because of you..thank you so much

[@PavnikSai]

I'm really thankful to being born in this Era, the Era of internet revolution and where people are given freedom and infinite possibilities to learn what they like. And I thank LEGENDS like Alakh sir who are providing WORLD-CLASS Education on a platform like KZbin. PS- A student from Udaan 2025

[@RaviPrakash-ve9tw]

❤❤❤❤❤❤❤❤❤

[@tanisha6060]

If v and u are in opposite to each other we get a real image.. This is true in real life as well..

[@ranjanmohanty4877]

How example

[@tanisha6060]

@@ranjanmohanty4877 only that friend who does not agree with your point everytime is the real one. That friend will always depict a real image of you..

[@chinmaya1949]

@@tanisha6060 पढ़ाई लिखाई करो आईएएस वाईएस बनो ।

[@tanisha6060]

@Sahil Srivastav Thank you for the support

[@mahima1219]

@@chinmaya1949 🤣

[@tulika._sen]

Thank you sir❤❤❤

[@jannatvirk9986]

The God of concept ♥

[@rajkushwaha8056]

Accha

[@thisisthakurharsh]

Thank u 🙏🙏🙏 sir

[@artikushwaha3815]

Thank you so much sir for making this easy

[@selectedmusic9201]

Welcome back sir Aapka new video dekhke dil khus ho gaya, fuli nahi sama Rahi Very very very happy. Ghabrat band ho gayi

[@Kiddo777-hehe]

Pw ka subscription lene baad bhi mai yahan aaya hu...... no one is best than alak sir... 🤩🤩🤩

[@arpitgupta1520]

At 1:17:40 sir agar hm logon n mirror 2sri wali side ko mana h to distance bhi 2sre pole se hi na li jayegi to jo object ki distance h vo -5 honi chahiye na +5 ki jgh

[@abhisheksaini4988]

Ma bhi yhi soch rha hu Yr.. .

[@Venom-kg5hf]

yes ... i think sir made a mistake

[@brijeshsingh9458]

Yes i also have the same doubt...😥

[@dharmeshbhagwagar5240]

Ans is coming same don’t worry u=-5,r=5,v=-2.5 same

[@benjamindanthy8413]

@Arpit Gupta Lekin Sir Ne Mirror matlab (Refracting surface) left se hain na aur observer right main toh barabar hain because eye is given in the question itself

[@shivamahir696]

39:17 sir when u and v of same sign then there would be a real inverted image so option b is correct

[@simbo295]

Serious boy 👍

[@kushagra9781]

Thank you sooooo ...much was having confusion in deciding n1 and n2 in virtual object case......💗😁👌

[@bookabyss]

while deriving the formula, we already considered "u" to be negative but then again, while solving problems, we took "u" as negative. Why is that?

[@subhashpandey9768]

Good explanation sir ☺️..... Keep it up

[@AnujSrivastava_01]

These lectures are never going to be old !!❤ Lots of Love from panipat!!❤❤

[@radhamadhav1782]

Abhi mae 12 th mae hu Year 2024 Aaj 8 December hai Board exam feb ke half se hai Sir mae ab bahut lagan se padhunga aur jab 12 th result aayega tho is comment ko edit karke yaha apni total % batunga All the best to myself❤❤❤

[@Krishn-ll7dv]

Bhai ye topic hai na syllabus me

[@anandmani1504]

Ha hai bro

[@Krishn-ll7dv]

@@anandmani1504 ok

[@sairunsairun2037]

Who is doing this lecture for 2024 board exams .love your all lecture

[@anindasaha5617]

Love it❤️

[@ianandkumar]

Sound Effects --> 10:55 , 11:11 , 11:37 , 11:56 , 12:19 !! 11:37 and 12:19 are the best !! :* :D

[@arshilmumtaz480]

Bhai tum padhte ho ki ye sab notice karte ho😅

[@ianandkumar]

@@arshilmumtaz480 :D Padhte waqt notice karta hu, padhne ke baad dhundh ke comment kar deta hu.... :p

[@sparta99yt82]

@@ianandkumar Weldon

[@ianandkumar]

@@sparta99yt82 Sukriya

[@ishikajarwal5845]

Cleared all concept thnk u so much

[@SanataniV7]

Sir kaise aapka shukriyada karu 🙏🙏apko maine apna real guru mana hai aue hamesha ap hi rahoge

[@vivekpatel7452]

9 December 2023 Thank you sir ☺️☺️☺️

[@240anuradhapanda4]

sir real depth and apparent depth men bole the n2- jisse light aa rahi he. now n1-jisse light aa rahi he..It will make me little confusion further, I guess. Anyway, thanks sir for your effort.

[@redmightyt5331]

Right

[@pathak....4170]

Refraction by spherical mirror now crystal clear

[@vikashkumarthakur-r4c]

Thank you sir ji 🙏 😊 1:16:37