Focal length of a convex lans

Поділитися
Вставка
  • Опубліковано 21 сер 2024
  • Why the focal length of a convex lens is always taken as positive? A student asks.

КОМЕНТАРІ • 190

  • @xikhyadikhya3948
    @xikhyadikhya3948 11 місяців тому +87

    Wish u a very happy teacher's day....I m also a physics teacher... I learn a lot from u... Thnks for ur greatest contribution towards the field of physics.... I pray for ur gud health...

  • @aakarshanand6063
    @aakarshanand6063 11 місяців тому +67

    I'm in University but I still watch sir's videos , they still make you feel amazed by the way he teaches

  • @asishkumarghoshdastidar1409
    @asishkumarghoshdastidar1409 11 місяців тому +11

    Namaste 🙏 sir. I am retired govt officer but I am still learning from your virtual classes. Wish you a long life with good health 🙏.

  • @quahntasy
    @quahntasy 11 місяців тому +7

    *Best physicist and teach in India.* Happy teachers day
    Hit like if you agree

  • @aryendrasinghparihar6940
    @aryendrasinghparihar6940 11 місяців тому +5

    A very delightful Teacher’s Day to you, sir! Your guidance and care have been a treasure to me. Please continue supporting today’s readers, who are tomorrow’s leaders.

  • @dhananjaysharrma10d2
    @dhananjaysharrma10d2 11 місяців тому +10

    Happy Teacher's Day Sir! I'm not a physical student of yours, but when I read your book Concepts of Physics, it's like you're there explaining us the concept and asking us the questions from the back exercises. Thank you sir!

  • @AnkitKumar-bl5hl
    @AnkitKumar-bl5hl 11 місяців тому +2

    HAPPY TEACHERS DAY GURUJI ...... BHAGVAN KARE KI AAP SALOO TAK ESE HI SAB KO PADHATE RAHE .... I AM AMAN NAEST 2022 SEMIFINALIST . THANKS FOR SUCH GREAT GREAT TEACHING ILLUSTRATIONS ..

  • @radhe_radhe__sabko
    @radhe_radhe__sabko 11 місяців тому +5

    Happy teacher's day sir u r really best teacher of physics ♥️🙏🏻

  • @ashwinikumar1204
    @ashwinikumar1204 11 місяців тому +4

    Happy teacher's day to you sir..
    You are the best teacher for all of us..
    Many many thank you sir for providing such type of small hidden concept..

  • @vectoranonymous4908
    @vectoranonymous4908 11 місяців тому +5

    पद्म श्री से सम्मानित गुरु हरिशचंद्र वर्मा जी को शिक्षक दिवस पर सादर प्रणाम 🙏❤

  • @pranjalupreti5633
    @pranjalupreti5633 11 місяців тому +1

    Happy teachers day sir....
    Aap hamare guru h ye hamara sobhagya h aap mere aur kaie logo k man m physics k prati pyar lane ka karan h m aap ka hamesa dhanyavaad karta hu.... Aur m vada karta hu m bhi physics k field m jaunga aur aap ka nam rosan karunga
    Thanks a lot for knowledge sir...... 🙏🙏🙏🙏🙏🙏🥰🥰🥰🥰🥰.....
    Lots of love from your student
    Pranjal

  • @subhamavparmy
    @subhamavparmy 11 місяців тому +1

    Happy Teacher's Day sir ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
    Proud to be an Electrical Engineering student to see your lecture

  • @madhavdua1246
    @madhavdua1246 11 місяців тому +2

    Hare Krishna 😇🙏 Thankyou so much for the explanation Sir 😇🙏 Happy Teachers' Day

  • @Manichandrakar-ii1fs
    @Manichandrakar-ii1fs 11 місяців тому

    Happy teacher's day sir🙏. Aap physics ke field ke greatest teacher ho world me .Mai ek medical entrance exam ki preparation kar raha hu but Mai aage bhi physics se juda rahunga aap jaise teachers ki waah se jinhone physics ki khubsurati dikhayi

  • @Improve_Physics
    @Improve_Physics 11 місяців тому +1

    I'm an physics Faculty... Your Book HCV is like GEETA for us

  • @aryendrasinghparihar6940
    @aryendrasinghparihar6940 11 місяців тому +1

    Excellent explanation
    i also had the same
    now it got resolved
    Happy teacher day to my best teacher ….

  • @raghav3900
    @raghav3900 11 місяців тому +2

    Happy teacher's day sir
    Salute to your dedication and passion for teaching.
    Thank you so much sir for everything.

  • @BM-ti5vq
    @BM-ti5vq 11 місяців тому +1

    Happy Teachers Day Sir... You are the best teacher sir ❤❤❤

  • @soumitrasen8005
    @soumitrasen8005 11 місяців тому

    "Yeh f nehi badal ne wala hai" , aap jaise koi aur v nehi mil ne wala hai. ❤

  • @samarjitdas6378
    @samarjitdas6378 11 місяців тому +1

    Happy Teacher's Day Sir 🙏 thanks for bettering the world with your knowledge

  • @sudeshkumar3274
    @sudeshkumar3274 11 місяців тому +1

    Happy teacher’s day sir. God bless you good health and happiness.

  • @sunitkumarshortvlogs
    @sunitkumarshortvlogs 11 місяців тому

    Happy teacher's day,,respected and beloved hcv sir❤❤❤❤❤love from jharkhand ranchi.. Inspiration...i am remembering those moments when I had met u in our university dspmu, ranchi,, in may 10,11..love u sir

  • @shambhavi2824
    @shambhavi2824 11 місяців тому +1

    Only a true genius has hair like this....

  • @NiharTripathy_Dew_Lord
    @NiharTripathy_Dew_Lord 11 місяців тому

    Sir, You're the bedrock of physics education. Wish you a delighted Teachers'Day. 🙏

  • @AshishKumar-pg9hi
    @AshishKumar-pg9hi 10 місяців тому +1

    We take f as +ve in convex lens because the rule of sign convention state object should place left to the lens

    • @Lumieresage
      @Lumieresage 3 місяці тому

      But in concave lens we take f to be negative, then how??

  • @vectoracademy
    @vectoracademy 11 місяців тому

    As usual the best one....pranam Guruji ko🙏🙏

  • @HarshitRaj-id9bc
    @HarshitRaj-id9bc 6 місяців тому

    Best Physics Teacher 🫶❤️

  • @sanadgupta2012
    @sanadgupta2012 11 місяців тому +2

    Happy Teacher's Day sir..🎂🎂🥳🥳

  • @RUDRA_DEV_JHA
    @RUDRA_DEV_JHA 11 місяців тому +1

    A very very happy Teacher's day Sir ji ❤

  • @Ram0638
    @Ram0638 11 місяців тому +1

    Happy teacher's Day ❤ ,, Sir Please Concept of physics volume 2 , Hindi me Published kar Dijiye... ❤❤

  • @sparsh6019
    @sparsh6019 11 місяців тому +9

    A very happy teachers' day गुरुजी
    It may be not wrong to say you as "The God Of Physics in India"
    Pranam
    🙏🏼🙏🏼🙏🏼

  • @RohanDhandr8
    @RohanDhandr8 11 місяців тому +2

    Happy Teacher's Day गुरुजी🙏🙏

  • @ArtiY7
    @ArtiY7 11 місяців тому +1

    Wish u a very happy teacher's day sir 💐🙏

  • @AyushKumar-db5jm
    @AyushKumar-db5jm 11 місяців тому

    Happy Teacher's Day Guru jii 🛐❤️

  • @JeeAspirant-fx7kk
    @JeeAspirant-fx7kk 11 місяців тому

    Happy teacher's day Sir! We love you ❤😊

  • @srijansingh9947
    @srijansingh9947 11 місяців тому +1

    Always have great respect for sir hc verma ❤

  • @DeepakRaj_DR2
    @DeepakRaj_DR2 11 місяців тому +2

    Sir Lens hota n, LAns likha hua hai

  • @Shayam90990
    @Shayam90990 11 місяців тому

    Happy teacher's day sir you are always my fev teacher sir ❤

  • @ANIKET0102
    @ANIKET0102 11 місяців тому +1

    MORAL OF THE STORY IS ( NEVER WILL CHANGE THE FOCAL LENGTH)

  • @swizzbeats1212
    @swizzbeats1212 11 місяців тому +1

    Amazing.

  • @deepsamanta266
    @deepsamanta266 11 місяців тому +1

    Happy teachers'day sir

  • @vishaldhanorkar2339
    @vishaldhanorkar2339 11 місяців тому

    Huge Respect for Verma sir ☺️🙏

  • @abhisheksoni9774
    @abhisheksoni9774 11 місяців тому

    Happy Teachers' Day Prof. HC Verma ❤😊

  • @Anukalp_Tripathy
    @Anukalp_Tripathy 11 місяців тому +5

    Sir I study in class 11. But when I read a topic Friction in Force and Newtons Laws of Motion, I came across a question:- What is the direction of friction while a man is walking on a road? I am also confused by different answer from different sources . Although I couldn't get satisfactory conclusion to the question. I wil be very very Thankful to you if you answer to my question.

    • @rctablet1402
      @rctablet1402 11 місяців тому +1

      Direction is always opposite of friction broh

    • @eternal456
      @eternal456 9 місяців тому

      What's Friction? It's simply the force exerted between two surfaces to resist or oppose the relative motion between them given that they are in contact,so it's direction is always opposite to the motion happening between the two surfaces.

    • @newenglishacademy555
      @newenglishacademy555 28 днів тому +2

      ​@@rctablet1402 no it is not always opposite some times in some cases F & f are in same direction.

  • @homekitchen2964
    @homekitchen2964 11 місяців тому +1

    Happy teacher's day sir 🎉😊

  • @kashyapdivyanshu
    @kashyapdivyanshu 11 місяців тому +1

    Happy teacher's day sir❤

  • @violencegaming8822
    @violencegaming8822 11 місяців тому

    God of physics , please tell the correct way to solve physics numericals

  • @jyotikagogoibaruah
    @jyotikagogoibaruah 11 місяців тому +1

    Happy teacher's day sir 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

  • @bindhyachalgupta5571
    @bindhyachalgupta5571 11 місяців тому

    Great teacher of India !!

  • @prasunsar567
    @prasunsar567 11 місяців тому

    Sir , Happy Teacher's Day ... Pronam ... 🙏🙏🙏 ... Sir , next course please

  • @AashiyaSaifi-zc6dr
    @AashiyaSaifi-zc6dr 11 місяців тому +1

    Amazing Pearson whose feel the physics and way of he teach that is mourvouless😮😯😌🙄🙂☺😊☺😁😀😊🤗

  • @aakarshanand6063
    @aakarshanand6063 11 місяців тому +1

    The physics god 🛐

  • @akshitanshupriyam4021
    @akshitanshupriyam4021 11 місяців тому

    Wishing you a very happy teacher's day sir ,pranam🙏
    Sir, I am waiting for your new course.

  • @GAURAVGUPTA-xw1xf
    @GAURAVGUPTA-xw1xf 11 місяців тому

    Happy Teacher's Day Sir!!🙏✨

  • @SaurabhKumar-nq7py
    @SaurabhKumar-nq7py 11 місяців тому +1

    Happy techer day sir ♥️♥️♥️♥️🎉🎉🎉🎉🥰🥰

  • @pranabbarman9763
    @pranabbarman9763 11 місяців тому

    Happy teacher's day sir🙏

  • @divyarai2220
    @divyarai2220 11 місяців тому

    I like ur teaching method sir🙏

  • @atanurakshit6684
    @atanurakshit6684 11 місяців тому

    Very nice sir . 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

  • @abhinaymaths956
    @abhinaymaths956 11 місяців тому

    Thank you sir best explanation

  • @harshhridaynarayan508
    @harshhridaynarayan508 11 місяців тому

    Sir please upload vedios continuously. please.

  • @ashutoshpandey3581
    @ashutoshpandey3581 11 місяців тому +1

    Sir i have a question. Why we take -v as image distance in human aye calculation

  • @saptadipchakraborty747
    @saptadipchakraborty747 11 місяців тому +1

    Happy Teachers'Day sir 🙏🙏

  • @chandansaha3765
    @chandansaha3765 11 місяців тому +1

    sir, my name is soumik saha, mara doubt hai, light ko le kar, light wave hai yea particle, issac newton ne kaha tha ki light particle hai, higens ne kaha tha ki light wave hai, jab light ka gati mapna mumkin hua, tab a sabit ho gaya tha ki light wave he hai. lakin bat ma Einstein ne photo electron effect ko explain karte hua e man lia tha ki light particle he hai. isa lia e doubt avi tak clear nehe hua ki light particle hai yea wave hai?? , please sir give me my answer. please sir.

  • @ankush..pandey
    @ankush..pandey 11 місяців тому

    wish you a very happy teacher's day
    i am also from bihar

  • @NamanJajoria
    @NamanJajoria 11 місяців тому +2

    Sir, I have a question: We understand that atoms constitute the entire universe. However, I'm curious about how is atom are created how it formed. It seems that no one can definitively state that atoms cannot be created, as they are perpetually present throughout our universe. Could you kindly provide a detailed explanation for this? This question has been intriguing me since my 9th class, and I would greatly appreciate your response.

    • @Nikola_tesla-52
      @Nikola_tesla-52 11 місяців тому +1

      In which class you are righ now ?

    • @NamanJajoria
      @NamanJajoria 11 місяців тому +1

      @@Nikola_tesla-52 10th

    • @abhinavtiwari5585
      @abhinavtiwari5585 11 місяців тому

      ​@@NamanJajoriabro it is not a topic of physics.
      But no one exactly knows about formation of universe but bing bang is most trusted among all theories

    • @That_Perspective.
      @That_Perspective. 9 місяців тому

      Bhaiiii, i was drinking tea while reading this comment, i literally spill it! Kya question haiii ekkk number!!! 🔥 Hats off

  • @riyaupadhyay6001
    @riyaupadhyay6001 11 місяців тому +1

    Happy teacher's day sir 🙏🏻😊

  • @07pie
    @07pie 11 місяців тому

    Happy teacher's day sir 🙏♥️

  • @eyemmohini
    @eyemmohini 11 місяців тому

    Happy Teachers Day Sir 🙏

  • @halfheadcrusher4302
    @halfheadcrusher4302 11 місяців тому

    Happy Teacher's Day Sir

  • @sayanmukherjee8123
    @sayanmukherjee8123 11 місяців тому

    Happy teachers day sir ❤

  • @Monojeetroy04
    @Monojeetroy04 11 місяців тому

    Such a great teacher ❤❤

  • @rctablet1402
    @rctablet1402 11 місяців тому

    We take focal length positive bcz we are assuming that the first sphere is involving in the further explanation

  • @asangappakotagi8577
    @asangappakotagi8577 11 місяців тому

    Happy TEACHER'S day sir❤

  • @dhruvchaudhary3448
    @dhruvchaudhary3448 11 місяців тому

    Happy teachers' day, sir.🎉🎉🎉...i am comming kanpur very soon to meet you...❤❤

  • @AstrayYouth
    @AstrayYouth 11 місяців тому +1

    Change the lans by lens❤❤

  • @ronityadav4396
    @ronityadav4396 11 місяців тому +1

    Sir lens*

  • @teamfly002
    @teamfly002 Місяць тому +1

    G.O.A.T of Physics💀

  • @sachinrajpandey5242
    @sachinrajpandey5242 11 місяців тому

    Please start online course like earlier Sir . Thank you Sir.

  • @dxfire7865
    @dxfire7865 11 місяців тому

    Happy teacher's day sir

  • @gautamthakur9164
    @gautamthakur9164 11 місяців тому

    Happy Teacher's Day sir.

  • @its_seth_khan
    @its_seth_khan 11 місяців тому +1

    Sir how to solve physics electricity numerical please explain sir

  • @NOOBGAMER-bi5nm
    @NOOBGAMER-bi5nm 11 місяців тому

    Sir lans ka to kisi ne nhi padhaya.... yeh to aapki book mein bhi nhi hai udhar sirf lens tk hai....
    Thankyou varna pakka mere marks kat jaate

  • @Thephysicsplace
    @Thephysicsplace 11 місяців тому +1

    Lens*

  • @anubhavarora3282
    @anubhavarora3282 11 місяців тому +1

    Sir please make a video on derivation of surface tension in a curvature having two spherical surfaces(i.e T(1/r1+ 1/r2)).

  • @theKZone2024
    @theKZone2024 11 місяців тому

    Happy teacher's day sir for you

  • @dileeppatel8313
    @dileeppatel8313 11 місяців тому

    Happy teacher's day Sir 🎉🎂🎂

  • @grippie0504
    @grippie0504 11 місяців тому

    Happy teacher's day sir🙏🏻

  • @siyaparty
    @siyaparty 11 місяців тому

    Why we need to calculate acceleration

  • @vaishnavisoni4106
    @vaishnavisoni4106 11 місяців тому

    Thankyou sir🙏🏻

  • @GoodVibes-Gallery
    @GoodVibes-Gallery 11 місяців тому

    HAPPY TEACHER'S DAY 🤍🫠

  • @Ydv_Mitin
    @Ydv_Mitin 11 місяців тому

    Happy teacher's day sir🎉

  • @Dance.withAyush
    @Dance.withAyush 11 місяців тому

    Happy Teachers Day Sir❤

  • @Its_GtG
    @Its_GtG 11 місяців тому

    Happy Teacher's day sir

  • @violencegaming8822
    @violencegaming8822 11 місяців тому

    Sir. , why electromagnetic waves can't pass through metal

  • @LakhanJha-tz8fc
    @LakhanJha-tz8fc 11 місяців тому

    Happy teacher day sar

  • @beereshyadavPMW
    @beereshyadavPMW 11 місяців тому +1

    Sir ,,1volt=1/300 statvolt,,, agr ese dekhe to CGS mai value badi aa rahi hai ,,,

  • @deepanshuarya02
    @deepanshuarya02 11 місяців тому

    Happy teachers day sir ji🎉

  • @divyha1604
    @divyha1604 11 місяців тому

    wish you a very happy teachers day sir

  • @CodingAt14
    @CodingAt14 11 місяців тому

    Why we should take both lena in perbiopic eye

  • @plaban6
    @plaban6 11 місяців тому +2

    Thank you sir❤ one like for sir guys please

    • @plaban6
      @plaban6 11 місяців тому

      For teachers day.❤❤