How To Use LENS MAKER FORMULA : Sign Convention and LENS NUMERICALS: Class X :ICSE /CBSE PHYSICS

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  • เผยแพร่เมื่อ 7 ส.ค. 2017
  • Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
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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 TH-cam)
    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.
    Refraction of Light Class X : CBSE / ICSE : Bending of Light : Bending in Glass Slab And Prism
    • Refraction of Light C...
    What is Refractive Index ? CLASS X : CBSE / ICSE : Refraction Of Light 02
    • What is Refractive Ind...
    Snell's Law : Class X CBSE / ICSE : Refraction Of Light 03
    • Snell's Law : Class X ...
    Glass Slab : LATERAL DISPLACEMENT of Light : Class X CBSE / ICSE : Refraction Of Light 04
    • Glass Slab : LATERAL D...
    Real Depth & Apparent Depth : Class 10 , 12 ICSE / CBSE : Refraction of Light 05
    • Real Depth & Apparent ...
    Angle Of Deviation in PRISM : MInimum Deviation Condition : Class 10,12 CBSE ICSE ISC
    • Angle Of Deviation in ...
    Critical Angle & Total Internal reflection : Prism ray diagram : Class X: ICSE
    • Critical Angle & Total...
    Prism Ray Diagrams || Path of Ray through Prism || Total Internal Reflection || Critical Angle ||
    • Prism Ray Diagrams || ...
    LENSES :CLASS 10 : CBSE & ICSE : CONVEX AND CONCAVE LENS: Characteristic of IMAGE :REFRACTION:
    • LENSES :CLASS 10 : CBS...
    How To Use LENS MAKER FORMULA : Sign Convention and LENS NUMERICALS: Class X :ICSE /CBSE PHYSICS
    • How To Use LENS MAKER ...
    How to Solve Lens Numericals | Lens Maker's Formula | SIgn Convention in Lenses| 10 CBSE / 10 ICSE
    • How to Solve Lens Nume...
    DISPERSION & SPECTRUM of LIGHT : CLASS X , XII : ICSE / ISC/CBSE
    • DISPERSION & SPECTRUM ...
    10 ICSE : Physics chapter 4 : Refraction at Plane Surfaces : Imporatnt Compilation
    • 10 ICSE : Physics chap...

ความคิดเห็น • 1.5K

  • @PhysicsWallah
    @PhysicsWallah  5 ปีที่แล้ว +462

    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 TH-cam)
    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.
    Refraction of Light Class X : CBSE / ICSE : Bending of Light : Bending in Glass Slab And Prism
    th-cam.com/video/euj-sXYys9o/w-d-xo.html
    What is Refractive Index ? CLASS X : CBSE / ICSE : Refraction Of Light 02
    th-cam.com/video/0peBVJuZXKE/w-d-xo.html
    Snell's Law : Class X CBSE / ICSE : Refraction Of Light 03
    th-cam.com/video/sOYWas_P_F8/w-d-xo.html
    Glass Slab : LATERAL DISPLACEMENT of Light : Class X CBSE / ICSE : Refraction Of Light 04
    th-cam.com/video/rDAHDj-qPsE/w-d-xo.html
    Real Depth & Apparent Depth : Class 10 , 12 ICSE / CBSE : Refraction of Light 05
    th-cam.com/video/UvlSe59Zsxo/w-d-xo.html
    Angle Of Deviation in PRISM : MInimum Deviation Condition : Class 10,12 CBSE ICSE ISC
    th-cam.com/video/Few1Uip06nc/w-d-xo.html
    Critical Angle & Total Internal reflection : Prism ray diagram : Class X: ICSE
    th-cam.com/video/9MNsxX-__xM/w-d-xo.html
    Prism Ray Diagrams || Path of Ray through Prism || Total Internal Reflection || Critical Angle ||
    th-cam.com/video/r5x53NkAgiY/w-d-xo.html
    LENSES :CLASS 10 : CBSE & ICSE : CONVEX AND CONCAVE LENS: Characteristic of IMAGE :REFRACTION:
    th-cam.com/video/_4AidWmr9go/w-d-xo.html
    How To Use LENS MAKER FORMULA : Sign Convention and LENS NUMERICALS: Class X :ICSE /CBSE PHYSICS
    th-cam.com/video/PjiTB9eAyho/w-d-xo.html
    How to Solve Lens Numericals | Lens Maker's Formula | SIgn Convention in Lenses| 10 CBSE / 10 ICSE
    th-cam.com/video/uU26G59tnKU/w-d-xo.html
    DISPERSION & SPECTRUM of LIGHT : CLASS X , XII : ICSE / ISC/CBSE
    th-cam.com/video/ZvsQUKyJHmU/w-d-xo.html
    10 ICSE : Physics chapter 4 : Refraction at Plane Surfaces : Imporatnt Compilation
    th-cam.com/video/PINlGOKF9Lk/w-d-xo.html

    • @ratankumarmahato8192
      @ratankumarmahato8192 5 ปีที่แล้ว +1

      Ye lens formula hai, Lens maker's formula me Refractive index of glass & focal length ke bich relation hai

    • @saritadev6604
      @saritadev6604 5 ปีที่แล้ว +15

      @@mohitdahiya1224 tmig nhi h kya tumha bolna ki...........
      Ki kasa kisi teacher sa bola gata h,, jo ki tumha free ma pdha rha h

    • @skeshri1389
      @skeshri1389 5 ปีที่แล้ว +8

      @@saritadev6604 u r right......seriously they just don't hv any manners........shameful

    • @partimashahi1153
      @partimashahi1153 5 ปีที่แล้ว +4

      Yes you are right sarita whatever you said

    • @saritadev6604
      @saritadev6604 5 ปีที่แล้ว +1

      @@partimashahi1153 thanks

  • @Aryapandey07
    @Aryapandey07 25 วันที่ผ่านมา +42

    2024-2025 batch 🙋‍♀️

  • @aanchalnagar21
    @aanchalnagar21 11 หลายเดือนก่อน +267

    20223-24 batch 🙋

  • @jypn30
    @jypn30 5 ปีที่แล้ว +121

    Rare to find teacher like you, who makes physics so simple to understand

  • @akshatdubey6962
    @akshatdubey6962 4 ปีที่แล้ว +668

    English aur hindi ke transition me sir ka tone kitna badal jaata hai!😂

    • @uniqueid2414
      @uniqueid2414 2 ปีที่แล้ว +4

      Sahi pakde hein

    • @uniqueid2414
      @uniqueid2414 2 ปีที่แล้ว

      😂

    • @uniqueid2414
      @uniqueid2414 2 ปีที่แล้ว +16

      Sir ne ek bar kaha tha ki mene English Oxford se li hai😂.
      But I love sir for the teaching so well🙏.

    • @jayhind421
      @jayhind421 2 ปีที่แล้ว

      @@uniqueid2414 ff

    • @Idk_4742
      @Idk_4742 2 ปีที่แล้ว +12

      Yeah, he speaks normal in hindi but lil bit louder in English.😂

  • @dakshamahuja4663
    @dakshamahuja4663 5 ปีที่แล้ว +293

    Please dont disrespect your teacher.....he is teaching for us... He could have taught cbse ...but he chose icse only bcoz of us........atleast he is teaching....and that totally free of cosst.......may u live long sir.....do ur best and LET THE DOGS BARK BCOZ HATERZ GONNA HATE...

    • @GAURAvSharma-zn4ey
      @GAURAvSharma-zn4ey 3 ปีที่แล้ว +3

      😯

    • @arya_4883
      @arya_4883 3 ปีที่แล้ว +54

      Comments me to kahin dikh nai rha ki sir ko koi disrespect Kiya hai

    • @shivamvaze8509
      @shivamvaze8509 ปีที่แล้ว +15

      @@arya_4883 main bhi vohi dhoondh rha tha

    • @audipuff8637
      @audipuff8637 ปีที่แล้ว +5

      I really respect alakh sir even I have taken the membership. But sorry I can't stop my laugh watching the 5 years ago alakh sir

    • @audipuff8637
      @audipuff8637 ปีที่แล้ว +7

      6:26 the question reads 😂😂😂😂

  • @PrakashSingh-xh7xg
    @PrakashSingh-xh7xg 6 ปีที่แล้ว +461

    best explained ever...!

    • @RaushanKumar-xj2cg
      @RaushanKumar-xj2cg 3 ปีที่แล้ว +5

      Kaise best explanation hua bhai numerical galat hai

    • @PrakashSingh-xh7xg
      @PrakashSingh-xh7xg 3 ปีที่แล้ว +22

      @@RaushanKumar-xj2cg Bhai agar tu sirf ek numerical dekh Kar judge karta hai......to tu tujhse bada immature insaan koi nhi hoga....!!

    • @RaushanKumar-xj2cg
      @RaushanKumar-xj2cg 3 ปีที่แล้ว +2

      Kaise immature insan hai

    • @RaushanKumar-xj2cg
      @RaushanKumar-xj2cg 3 ปีที่แล้ว +3

      Dekhange too Pura n?

    • @RaushanKumar-xj2cg
      @RaushanKumar-xj2cg 3 ปีที่แล้ว +3

      Ha mante hai ke explanation best hai too usko kharab kar denge sab kuchh best rahna chahiye n?

  • @rashmisarda4597
    @rashmisarda4597 5 ปีที่แล้ว +94

    A day before physics board exam ..... I don't know lens maker formula at all..... I said to myself " darna kyon hai physicswallah hai na """ thank you sir ....greatly indebted to you

    • @Anisole23
      @Anisole23 2 ปีที่แล้ว +1

      Kitne percentage aaye the?🙌

    • @kartikjaiswal9386
      @kartikjaiswal9386 2 ปีที่แล้ว +1

      @@peaceinmoto4022 🙂

    • @aparna7135
      @aparna7135 2 ปีที่แล้ว

      @@peaceinmoto4022 💀💀💀💀

    • @CobraPlays
      @CobraPlays ปีที่แล้ว

      Cringe but fine

  • @chandranimukherjee5312
    @chandranimukherjee5312 5 ปีที่แล้ว +70

    This is white magic
    How can you teach so good???😃😃😃
    I can certainly tell you practise teacher sorcery.

  • @ashpal123
    @ashpal123 7 ปีที่แล้ว +669

    When I saw your videos, and came to your channel to subscribe, first thing i checked was whether or not you are consistent in putting up videos till date or not? Have seen many experts start a channel and leave it midway. Please keep posting. You are more than awesome and a hope for physics learners. God bless you with the energy to pursue this passion.

    • @PhysicsWallah
      @PhysicsWallah  7 ปีที่แล้ว +516

      thanx ashish , yes i will cover full syllabus , uploading of videos is a tiring process thats why it is taking time , else i can teach whole topics in one day only

    • @pinkighosh9492
      @pinkighosh9492 6 ปีที่แล้ว +41

      ohh! sir... but i don't think so that anything will go inside the students head in one day covering all the topics..!! but one thing to say.... is that your explanation is awesome...,!!

    • @kamleshshukla7437
      @kamleshshukla7437 6 ปีที่แล้ว +4

      Ashish Pa

    • @gurumobileguruji1608
      @gurumobileguruji1608 6 ปีที่แล้ว +5

      agree #ashish pal

    • @labakumardebnath9682
      @labakumardebnath9682 5 ปีที่แล้ว +3

      @Ashis Pal Where from you?

  • @Dasssshh
    @Dasssshh 3 ปีที่แล้ว +33

    U are just like my friend who teaches everything before 15 mins of my exam

  • @Shorts_Bhandaar
    @Shorts_Bhandaar ปีที่แล้ว +14

    I know if you are watching 👀 this video now then I can tell that tomorrow is your physics exam, because that's what I am doing now watching his video now before my exam 😁😁
    So, chalo dekhte hai feer ha ki kal ka paper kesa jata hai

  • @enamsonavil6269
    @enamsonavil6269 4 ปีที่แล้ว +115

    2:28😂😂😂😂love you sir from North east

  • @anupbhakta7347
    @anupbhakta7347 5 ปีที่แล้ว +19

    Don't stop making ur spectacular videos...I always get massive help from your videos..that way you teach......clears the doubts inside my mind!!!!! .......You generally teach all ICSE chapters in Physics and I would like it if you complete the syllabus really fast but there's no hurry!!!! I never loved reading or learning from a phone but now you seemed to change the aspects even.....I am obliged to call you a sir!

  • @chetangupta1754
    @chetangupta1754 4 ปีที่แล้ว +181

    2:28 sir ne Hindi bol hi di🤣🤣🤣🤣

    • @theabhiram1639
      @theabhiram1639 3 ปีที่แล้ว +5

      Yea I am watching that rn

    • @akashkumarmishra4446
      @akashkumarmishra4446 3 ปีที่แล้ว +9

      Sir be like: chal tere aise ki tesi ab apun hindi bolega ......😂

    • @asthasingh8707
      @asthasingh8707 3 ปีที่แล้ว +2

      sir ne per bola kab ki vo eng hii bolenge................comeon kuch bhi bato pe majk met udhaya keroo

    • @rishavdas687
      @rishavdas687 3 ปีที่แล้ว +1

      🤣🤣

    • @mohaksethi6381
      @mohaksethi6381 3 ปีที่แล้ว +1

      😂😂😂😂😂😂😂😂😂😂😂

  • @vanshikapal8754
    @vanshikapal8754 2 ปีที่แล้ว +822

    Tomorrow is my phy boards exam...any one like me???😂🥺💔

  • @amartyaaaacademy1093
    @amartyaaaacademy1093 4 ปีที่แล้ว +66

    A god in teacher's face

  • @mail-eg7cq
    @mail-eg7cq ปีที่แล้ว +13

    2 hrs before board ✨️

    • @yours_ann7160
      @yours_ann7160 ปีที่แล้ว +5

      Same lmfao 💀. Best of luck !

    • @mail-eg7cq
      @mail-eg7cq ปีที่แล้ว +1

      @@yours_ann7160 best of luck gurllll

    • @yours_ann7160
      @yours_ann7160 ปีที่แล้ว +1

      @@mail-eg7cq hey! How did your exam go?

  • @memeswala5425
    @memeswala5425 ปีที่แล้ว +33

    Batch 2023-24 attendence lagao ❤

  • @Kyoworld777
    @Kyoworld777 4 หลายเดือนก่อน +4

    Me watching one day before board exam 😢

  • @Suejeudgsidjdj
    @Suejeudgsidjdj 4 หลายเดือนก่อน +7

    Tomorrow is my physics board and now I have started to study 😅

    • @whome.sanchi
      @whome.sanchi 4 หลายเดือนก่อน +1

      Same 💀

    • @saransh_0001
      @saransh_0001 4 หลายเดือนก่อน +1

      ​@@whome.sanchikal ke exam mein lagta hai fail 😢😢

  • @amrindersingh6588
    @amrindersingh6588 4 หลายเดือนก่อน +10

    Legend watch one day before board exam 😂

  • @D.I-BPSC
    @D.I-BPSC 3 หลายเดือนก่อน +10

    2024--2025 Batch🤚🤚

  • @user-it3gr2qd6x
    @user-it3gr2qd6x 4 หลายเดือนก่อน +8

    1 night before present

  • @tanishkbajpai07
    @tanishkbajpai07 4 หลายเดือนก่อน +6

    Tomorrow is my boards 2024 batch 🙌🏻

  • @orangecounty4143
    @orangecounty4143 2 ปีที่แล้ว +8

    U covered 1 exercise in 10 mins truly appreciate your help.

  • @tenzindayoe8907
    @tenzindayoe8907 6 ปีที่แล้ว +3

    wow amazing teaching skills. obviously one of the best teachers on youtube. best explained ever..

  • @monikaagarwal9267
    @monikaagarwal9267 4 หลายเดือนก่อน +3

    Today is my physics boards 💀

  • @sarojanisingh5489
    @sarojanisingh5489 4 หลายเดือนก่อน +3

    Tommorow is my physics boards 😂 and im watching 4 hours before exam

  • @dilpreetk7942
    @dilpreetk7942 4 ปีที่แล้ว +6

    You have became my only hope when I just determined that I will study science in most interesting and efficient way instead of learning and memorizing topics as I always used to do.

  • @hitanshugala9191
    @hitanshugala9191 3 ปีที่แล้ว +41

    Thank you sir !! finally understood how we get object distance in negative !! 🙏🙏

  • @study3564
    @study3564 5 ปีที่แล้ว +15

    Sir. Whatever be your way of teaching, you're truly an inspiration. You teach so so so well, sir. Keep doing this, sir. Thank you so much sir.

    • @truegamer8474
      @truegamer8474 4 ปีที่แล้ว

      @Siddhant Singh perv 😤

  • @the.enchantresss
    @the.enchantresss 3 ปีที่แล้ว +12

    Thank you so much! This helped me a lot in my physics exam

  • @lovelycreation7million679
    @lovelycreation7million679 4 ปีที่แล้ว +27

    😊Thanks sir for being here for us... your work is appreciable😊☺...

  • @hemant3357
    @hemant3357 5 ปีที่แล้ว +227

    2:28 sir ki hindi bhi nikal hi hyi😂😂😂😂😂😂😂

  • @murshidalam8787
    @murshidalam8787 4 ปีที่แล้ว +13

    I forgot that's English version of our Alakh sir. Looking slim & more handsome sir.😆

  • @kadambinibhuyan4021
    @kadambinibhuyan4021 4 ปีที่แล้ว +5

    Excellent way of explaining sir. Great job!!

  • @gaurabdeb2091
    @gaurabdeb2091 5 ปีที่แล้ว +7

    Love to watch your videos. Btw i m a mathematician but due to TET exam i hv to summarise all the things of physics what i hd learn... N then i search on youtube n then gt ur tutorial.. Like it bro...

  • @tikan6170
    @tikan6170 5 ปีที่แล้ว +3

    Thank you sir, you cleared all my doubts on sign convention

  • @7clouds567
    @7clouds567 2 ปีที่แล้ว +4

    Who knew that this man will own 1.2B $ ed tech company today!

  • @Eduphillic-khushigupta
    @Eduphillic-khushigupta 4 หลายเดือนก่อน +3

    6 yr ago🥲🤌
    When i was in 7th class🥺

  • @samadritodey
    @samadritodey 3 ปีที่แล้ว +15

    One of the best teacher who has the urge in him to make students better.
    He could have easily taught in vedantu or unacademy like online institutes but he chose to put up his own channel....
    Hope the channel grows day by day...
    Loads of love and wishes...
    ~SAMADRITO
    Student of Adamas International School,Kolkata.

  • @goblin44490
    @goblin44490 3 ปีที่แล้ว +16

    No body in this whole universe can teach like Physics wallah sir.🙏🙏
    Your amazing explanation is the universal truth of physics, made easy.

  • @devanshi328
    @devanshi328 ปีที่แล้ว +20

    From Physics Wala to Physics Wallah, sir we are with you And will always be thankful to you for your full-hearted effort 😊😊

  • @haniahania650
    @haniahania650 4 ปีที่แล้ว +3

    You are the best teacher
    You always clear all the concept in the first time I don't need to repeat and repeat the video for concept clearing
    Thank you sir
    God bless you

  • @nevadadias9029
    @nevadadias9029 4 ปีที่แล้ว +3

    Keep up with the good work. Your videos are really very helpful

  • @kritigupta4316
    @kritigupta4316 ปีที่แล้ว +5

    Who is watching this lecture in 2022

  • @kalyanitewari
    @kalyanitewari 5 ปีที่แล้ว +10

    I'm watching this before my exam sir
    We don't get enough for preparation and you are my only hope
    Thank you so much ❤️❤️

  • @rakeshdeka526
    @rakeshdeka526 6 ปีที่แล้ว +3

    U r great sir... U clear all my doubts.. Thank you sir...

  • @SandeepKumar-oo7hn
    @SandeepKumar-oo7hn 4 ปีที่แล้ว +6

    Best teacher ever I seen

  • @bhavyainskyward3776
    @bhavyainskyward3776 3 ปีที่แล้ว +3

    After seeing your video lens numericals are crystal clear sir😀... Great Job sir👍🙏

  • @komaldesai07
    @komaldesai07 ปีที่แล้ว +19

    2023 student anyone !?

  • @physicon29
    @physicon29 5 ปีที่แล้ว +6

    Us time me aur aaj me aap bht change ho chuke hai🔥🔥

  • @HarikeshKushwaha-qk5uc
    @HarikeshKushwaha-qk5uc 8 หลายเดือนก่อน +3

    Mai to Sir ko Itna famous hone ke baad dekh raha hu
    ❤😊
    Aab to Sir ki Sadi bhi ho gayi hai 😁
    8 November 2023😊

  • @sarithaprabhu17
    @sarithaprabhu17 3 ปีที่แล้ว +4

    You are such a great teacher. Thank you so much.

  • @shinelkarols6068
    @shinelkarols6068 3 ปีที่แล้ว +5

    8:39 My math teacher when i forget to put sign for a solution in the exam😂

    • @unknown.9177
      @unknown.9177 3 ปีที่แล้ว +1

      Same unlog ka face dekhne layak hota hai🤣🤣🤣

    • @shinelkarols6068
      @shinelkarols6068 3 ปีที่แล้ว +1

      @@unknown.9177 ya😂😂🤣

    • @shinelkarols6068
      @shinelkarols6068 3 ปีที่แล้ว +1

      @HYPER ENERGY 😛😛😂

    • @Tanjiro88
      @Tanjiro88 3 ปีที่แล้ว

      Armys are everywhere 💜💜

    • @shinelkarols6068
      @shinelkarols6068 3 ปีที่แล้ว

      @@Tanjiro88 army😚😚💜

  • @facts_ki_duniya3286
    @facts_ki_duniya3286 ปีที่แล้ว +3

    if you are here and your boards is tommorow you are legend 😛

  • @sidneet.786
    @sidneet.786 5 ปีที่แล้ว +6

    Your teaching is awesome sir😊

  • @iagamingyt918
    @iagamingyt918 2 ปีที่แล้ว +5

    can someone tell when is the image distance i.e v in convex lens positive or negative?

    • @caldomgaming9471
      @caldomgaming9471 2 ปีที่แล้ว +1

      Image distance is always positive for a convex mirror. The focal length is positive for convex lens and mirrors. 'f' is negative for concave mirrors and lens. object distance is always negative for all the lens & mirrors.

    • @iagamingyt918
      @iagamingyt918 2 ปีที่แล้ว +1

      @@caldomgaming9471 no it is not always positive, because in some numericals of convex lens I have seen image distance being negative.

    • @shreyasigaur1798
      @shreyasigaur1798 2 ปีที่แล้ว +1

      Its positive when the image formed(v) is real and negative when image formed(v) is virtual

  • @TRLIVESTREAM
    @TRLIVESTREAM 2 ปีที่แล้ว +12

    8:23
    Isko mind me karne k liye 1 trick hai
    F1=10cm diya hai iska matlab 2F1=20cm hoga aur object bhi 20cm diya hai matlab object is at 2F1 so image will be formed at 2F2 jus opposite and at same distance....
    Ty to ALAKH SIR for te best explaination

    • @a10warthog54
      @a10warthog54 2 ปีที่แล้ว +1

      Thx yaar will save a lot of time in mcqs

  • @sweksha5479
    @sweksha5479 2 ปีที่แล้ว +24

    A blessing for students like me ❤️

    • @peaceinmoto4022
      @peaceinmoto4022 2 ปีที่แล้ว +5

      Hlo

    • @07.sparkz
      @07.sparkz 2 ปีที่แล้ว +7

      @@peaceinmoto4022 aurat ka chakkar hai babu bhaiya, aurat ka 😂😂

    • @peaceinmoto4022
      @peaceinmoto4022 2 ปีที่แล้ว +3

      @@07.sparkz na Bhai tumlog ek ladki aur ladka ka resta ko negative side sey dekh rahe ho wo Meri behan ho sakti hai

    • @yogeshgahlawat2868
      @yogeshgahlawat2868 2 ปีที่แล้ว +2

      Bye in comparison of hii

    • @07.sparkz
      @07.sparkz 2 ปีที่แล้ว

      @@yogeshgahlawat2868 😂😂

  • @ethanlane5595
    @ethanlane5595 5 ปีที่แล้ว +12

    Sir please tell me that why we take 1/f,1/V and 1/u? why we take one above the spherical mirror or lens terms? If we not take one then what problem will create..????

    • @tecksonthevibranium8206
      @tecksonthevibranium8206 4 ปีที่แล้ว

      Answer nahi milega

    • @jaggajasoos3276
      @jaggajasoos3276 4 ปีที่แล้ว +2

      Vo indian Christian bhi to ho sakta hai

    • @godson200
      @godson200 3 ปีที่แล้ว

      It is just derived in latest video of ray optics 1 year ago... You can see how it is derived

  • @girijeshjoshi5734
    @girijeshjoshi5734 3 ปีที่แล้ว +1

    Sir you are the awesome teacher i ever met....or may met in future ....sir you have the most different style of teaching...thank you sir for putting soo much efforts for making these videos and helping us...thanks a lot sir🙂🙂

  • @jasmithareddy581
    @jasmithareddy581 2 ปีที่แล้ว +1

    i am so thankful to you sir . I have watched many videos about sign conventions but i did not understand. But now I understood . Thanks a lot sir..........

  • @BalrajSandhu-oo9do
    @BalrajSandhu-oo9do 2 หลายเดือนก่อน +13

    2024-2025 batch 👉👉

  • @sauravyadav2034
    @sauravyadav2034 4 ปีที่แล้ว +3

    All doubts and confusion clear sir from this video thank you so much sir👍👍👍👍👍👍👍

  • @ramprasadgupta9785
    @ramprasadgupta9785 5 ปีที่แล้ว +1

    i subscribed u when u were having 1k but now very happy to see your 200+k subscriber

  • @jhanavisabharwal7452
    @jhanavisabharwal7452 4 ปีที่แล้ว +8

    Maine video mirror se lens ka bdla aur sir ne to India ko usa se bdl Diya...😂
    Btw nice explanation as always

  • @sunitakhandagale1081
    @sunitakhandagale1081 5 ปีที่แล้ว +4

    Best teacher for every student😄😄

  • @vikasraj1186
    @vikasraj1186 5 ปีที่แล้ว +4

    @physicswala
    i m confused...we say that that a slanting line coming goes straight from the lense but the example you gave the slanting line went slanting and not straight??? how can this be possible????please hurry tell sir!!!!!

  • @v.m.pathakvideo6811
    @v.m.pathakvideo6811 4 ปีที่แล้ว +2

    Thank you for clearing my doubt

  • @english-wallahraviprajapat7805
    @english-wallahraviprajapat7805 4 ปีที่แล้ว +17

    Wow what an wonderful explanation it was. Thanks a lot Sir.🙏🙏🧠🧠

  • @Howto-bl9bs
    @Howto-bl9bs 6 ปีที่แล้ว +3

    Your all videos are learnable. I have learnt this chapter from three teachers and the result was confusion in image formation of spherical mirrors and lenses but your videos cleared everything thanks for uploading the whole series but plz try to explain in hindi because its makes the leaning more comfortable and interesting nhi to pura lecture boring ban jata hai

  • @SiyaKapoor16
    @SiyaKapoor16 6 หลายเดือนก่อน +3

    East or West,,Physics Wallah is the best 👌 👍 😍

  • @theidiotictwins8743
    @theidiotictwins8743 4 หลายเดือนก่อน +3

    Have board exam in 4hrs 😢😢

  • @theinfotainment.
    @theinfotainment. 4 ปีที่แล้ว +2

    Sir ,very well doing a great job
    Fabulous never see a teacher like you

  • @adharshsuresh7805
    @adharshsuresh7805 4 ปีที่แล้ว +3

    We'll congratulations sir on your achievement sir thank you

  • @yashuwu0901
    @yashuwu0901 3 ปีที่แล้ว +3

    Beat explanation sir , it's amazing sir you make theory crystal clear like diamond, salute you sir, hats off sir for your explanation

  • @Medsss_17
    @Medsss_17 5 หลายเดือนก่อน +2

    We all may have new facilities to study, new teachers with smart boards and all.. But still all we do is to come and understand the concepts from these old and nostalgic lectures.. ❤

  • @Look_itsBroken
    @Look_itsBroken 4 หลายเดือนก่อน +2

    My exam is in 3 hours from now. It's 7:00 am😂

  • @sahila9715
    @sahila9715 5 ปีที่แล้ว +3

    Loved ur teaching Sir... I'm very happy..

  • @subhammaji641
    @subhammaji641 6 ปีที่แล้ว +13

    Sir,please upload ICSE calorimetry numericals. Plz plz plz.........…....…

  • @pentapalliganasaivathsav8591
    @pentapalliganasaivathsav8591 3 ปีที่แล้ว +2

    Thankyou for clearing my doubt 🙏🏻

  • @suhasrock7014
    @suhasrock7014 5 ปีที่แล้ว +1

    Very excellent explanation.......we loved it

  • @Physicswallah153
    @Physicswallah153 ปีที่แล้ว +7

    Who is here after 5 years

  • @kameshwaropentapalli58
    @kameshwaropentapalli58 6 ปีที่แล้ว +4

    Well Explained

  • @arunkumarjha8479
    @arunkumarjha8479 5 ปีที่แล้ว +1

    Sir if mirror is not given in question so ,which sign i put in v,u,m and f ..can you plz tell me
    sir ,
    shubham

  • @sittu1
    @sittu1 5 ปีที่แล้ว

    fantastic explanation................thanks a lot sir

  • @uerekaa171
    @uerekaa171 ปีที่แล้ว +3

    I am from future to tell you that you are 101 unicorn startup in 2022 and most likeable educational platform of INDIA 'PW' 🎉🎉🎉🎉🎉🎉🎇🎆🎆

  • @abhinav8bpyt549
    @abhinav8bpyt549 3 ปีที่แล้ว +3

    SUPER DUPER LECTURE I LOVE IT THANK U SIR.

  • @ranjitha9150
    @ranjitha9150 4 ปีที่แล้ว

    Best explanation especially about this topic sir.. Thanku

  • @Kyoworld777
    @Kyoworld777 4 หลายเดือนก่อน +1

    Watching 6 hours before exam🙀

  • @amandon1756
    @amandon1756 5 ปีที่แล้ว +6

    Sir,you are better than all

  • @motivationbylegends6684
    @motivationbylegends6684 3 ปีที่แล้ว +4

    I think this is the shortest lecture of Alakh sir for phyics lecture 😀😀😀

  • @hwlcec5344
    @hwlcec5344 2 ปีที่แล้ว +2

    he is not well but still teachng...thats why he has so much love now,,....always in the cushion of our love

    • @atharvakrishna6729
      @atharvakrishna6729 2 ปีที่แล้ว

      how do u know?

    • @hwlcec5344
      @hwlcec5344 2 ปีที่แล้ว

      @@atharvakrishna6729 you can understand by his voice

  • @navya7276
    @navya7276 4 ปีที่แล้ว

    Explanation was so nice........ Sir thnx for making this video....... 🙏👍👍

  • @funtime-tz5yb
    @funtime-tz5yb 10 หลายเดือนก่อน +3

    Thanks very helpful for me

  • @goblin44490
    @goblin44490 3 ปีที่แล้ว +4

    Sir maine aapka light chapter full 1 hour wala dekha tha ... earlier I thought that this ch was very difficult ... but after watching the whole video vo ch mere liye halwa ho gaya ... Image formation toa halwa ka bhi halwa ho gaya ... Your explanation and way of teaching is very amazing all over TH-cam. 🔥🔥🔥🔥🙏🙏🙏🙏🙏🙏🇮🇳

    • @godson200
      @godson200 3 ปีที่แล้ว

      I would suggest ki tum ray optics ke class 12 ke lectures bhi dekh lo agar interest ho toh.. It is really easy the way he explains it... It is really best to study geometrical optics in class 10 only as geometry is not taught after class 10 in maths..

  • @RajatGoyat
    @RajatGoyat 5 ปีที่แล้ว +1

    Best explanation I have ever seen

  • @ashmeetkaurmakkar5551
    @ashmeetkaurmakkar5551 ปีที่แล้ว +1

    Thanku sooo much sir for every topic of each and every chapter of class 10 icse ...I m really grateful for u to have u as my physics teacher ..due to ur efforts in ur videos my physics exam went really very well ..thank u so much sir ❤️ ..PW is always an emotion ❤️