TIR in Rainbow

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  • Опубліковано 21 сер 2024
  • Why there is no TIR in Rainbow formation.

КОМЕНТАРІ • 502

  • @aryan3232
    @aryan3232 Рік тому +281

    No smart board. But best class ever 😉.
    Me and my father watching this lecture together and my dad was old student of sir from Patna ..
    Hum dono ke taraf se pranam sir 🙏🙏

    • @laxmanramgarg8982
      @laxmanramgarg8982 Рік тому +9

      Apke pitaji bhi physics ke teacher hai kya ji 😘🙏🏻

    • @hcverma2928
      @hcverma2928  Рік тому +96

      Great 👍Thanks.

    • @aryan3232
      @aryan3232 Рік тому +5

      @@laxmanramgarg8982 Nhi par physics aache se samja dete hai

    • @laxmanramgarg8982
      @laxmanramgarg8982 Рік тому +2

      @@aryan3232 you are so lucky 😍🙏🏻

    • @aryan3232
      @aryan3232 Рік тому +5

      @@laxmanramgarg8982 Till 10th 😂😂😂

  • @saurabhmishra3987
    @saurabhmishra3987 Рік тому +344

    Although I'm a computer science student and i left studying physics from my 1st year but still I love to watch HC Verma sir' s lecture because it makes to dive again in the depth of the ocean of the physics

    • @harishroy2505
      @harishroy2505 Рік тому +3

      From which Institute are you from???

    • @saurabhmishra3987
      @saurabhmishra3987 Рік тому +4

      @@harishroy2505 from KIIT

    • @adheesh2secondsago630
      @adheesh2secondsago630 Рік тому +12

      Physics looks beautiful only till 1st year studies. Trust me people opt for chemistry as major instead of physics because of its horrifying nature. But yeah physics is very beautiful, nuclear forces, discovery of quarks, anti particles, god particles, fuels, rocket engine, and lot more to fill your mind with elixir.

    • @anuragbose2622
      @anuragbose2622 Рік тому +2

      Same here Computer Science Student

    • @saurabhisded
      @saurabhisded Рік тому +2

      @@saurabhmishra3987 even though i am in 11th class but then too i can understand deep and difficult concepts easily with his lectures. Btw we have the same name lol, and i also what to be a CS student😂

  • @physicswithdurgesh5930
    @physicswithdurgesh5930 Рік тому +104

    I am a physics teacher also and a PGT aspirant. Your teaching inspires me.

    • @hcverma2928
      @hcverma2928  Рік тому +34

      Thank You

    • @smileforyou7940
      @smileforyou7940 Рік тому +1

      @@hcverma2928 why Rambo are round not square

    • @Apex_predatorgaming
      @Apex_predatorgaming Рік тому +6

      ​@@smileforyou7940 water drop 💧 takes shape of sphere to minimize surface tension, that is applied by air when drop is falling down

    • @hitraw420
      @hitraw420 Рік тому

      @@smileforyou7940 surface tension

    • @humachetosabache
      @humachetosabache Рік тому

      @@smileforyou7940 due to surface tansion by the 💧☔ drops so this reason of rainbow not a square

  • @chiku5700
    @chiku5700 Рік тому +26

    I was science student till 12th now I'm pursuing CA but still it feels so good to see his lectures and beauty of this subject.. This is so emotional to me

  • @Formulazone
    @Formulazone Рік тому +23

    Sir I m from kanpur !
    I follow you since 2016
    You are my inspiration sir whenever I see you I feel happy!
    I teach math generally but I learned a lot from you not just physics , your way of teaching and honesty in your teaching .
    Thank you sir !

  • @DARK-SHIINE
    @DARK-SHIINE Рік тому +25

    I am a class 10 student and it helped me a lot to master in these 3 syllabus topics- Reflection, Refraction and formation of Rainbow!

    • @elwindas4502
      @elwindas4502 Рік тому

      Subscribe this channel also 👍
      Class 10 ICSE | MACHINE: ua-cam.com/play/PLOx877lWU_1cP9zsSNp1de52RqnSxgOmi.html

  • @TarmacThings
    @TarmacThings Рік тому +29

    Your book saved me from failing today's physics exam held in my coaching sir!🙏🙏🙏

  • @sharadsingh3672
    @sharadsingh3672 Рік тому +11

    A combination of great physicist and best teacher.. 🙏🙏

  • @76.priyankadanu20
    @76.priyankadanu20 22 дні тому

    Thank u sir... काश आप होते.. हमे विज्ञान इतने अच्छे से पढ़ाते कि हम भी बच्चो को इस तरह पढ़ा पाते कि हम उनमें विज्ञान को पढ़ने व जानने की प्रेरणा जागृत कर पाते।

  • @strong_ALOK
    @strong_ALOK Рік тому +7

    Don't know why.., when sir laughs I automatically laugh too..... Best teacher♥♥

  • @chemoholic24
    @chemoholic24 Рік тому +4

    Sir I'm in class 11th but following you since class 9th and I've always admired the way you teach concepts to students like us. Your book the very helpful to me and physics is absolute love for me. Thank you air, may your blessings be with me 🙏.

  • @avnitak5522
    @avnitak5522 Рік тому +6

    Those students are so lucky to experience his lectures live

  • @agworld4511
    @agworld4511 Рік тому +2

    He provides me with happiness whilst studying physics and it's really beautiful he makes physics seem like the most interesting subject ever!!

  • @vikassrivastav9942
    @vikassrivastav9942 Рік тому +3

    I love biology and chemistry but fell in love with physics because of teachers like you...🙏

  • @parthvarasani495
    @parthvarasani495 Рік тому +4

    Araybhatt jese dikh rhe ho 👏👏acha lag rha he ap ko dekh ke sir long live.

  • @Ayush..............
    @Ayush.............. Рік тому +1

    Dhanyawad guruji aap ham jaise JEE aspirants k liye sabse badi motivation ho bas aise he hame nayi nayi cheese sikhate rahiyega

  • @RaMmesy2345
    @RaMmesy2345 Рік тому +2

    u r best physics teacher , with u i can feel physics

  • @Sudarshan609
    @Sudarshan609 Рік тому +5

    One of the" finest teacher "of physics in the world

  • @yogipusham9490
    @yogipusham9490 Рік тому

    Kabhi socha hee nhi tha issa.........he is the best teacher

  • @rajveerchatterjee9026
    @rajveerchatterjee9026 Рік тому +7

    Man!!!!!.... I need a physics teacher like him 😭😭
    Living Legend ❤️🙇🙇

  • @Vmgjhfjhff456
    @Vmgjhfjhff456 Рік тому +4

    Great teacher of physics 🙂☺️🙂☺️

  • @rohit_bhupendra4508
    @rohit_bhupendra4508 Рік тому +2

    Great teacher with a extremely positive Nature ..........love yu sir ❤️❤️❤️❤️❤️

  • @utkarshgupta3043
    @utkarshgupta3043 Рік тому +2

    Thank you so much sir, I had commented a doubt on this topic about 7-8 ago....
    Had followed your book, written as that's not TIR, and I was bit confused about that.... Needed this video so much.
    Thank you once again😄

  • @jeeaspirant4837
    @jeeaspirant4837 Рік тому

    SIR I AM JEE ASPIRANT MAINE AAPKE BOOK KO SOLVE KIYA AAPKE BOOK KE HAR EK QUESTION NE MERA MISCONCEPTIONS CLEAR KAR DIYA THANKS SIR FOR YOUR HARD WORK AND FOR YOUR OVER POWERD BOOK.

  • @specialsatya4907
    @specialsatya4907 Рік тому +3

    Huge respect sir ,sir I fall in love with ur physics book . thanks sir for ur amazing Book

  • @priyabratadash381
    @priyabratadash381 Рік тому +2

    I think in case of 41degree rainbow 🌈 when sun light enters into raindrops, after refraction at the interface, it gets refracted at an angle very close to critical angle and with same angle(obeying property of geometry) when light falls on the water -air interface gets totally internally reflected. This is the reason bcz of which intense rainbows are not observed at all angles but at suitable angles like 41, 51 degrees etc.

  • @sandeepteachingcentre
    @sandeepteachingcentre Рік тому +1

    Sir, I can't believe that you are taking lecture in Hindi. Bahot acha lag rha Sir.

    • @hcverma2928
      @hcverma2928  Рік тому +2

      अपनी भाषा में ज़्यादा अच्छा बोला जा सकता है।

    • @sandeepteachingcentre
      @sandeepteachingcentre Рік тому

      @@hcverma2928 Ji Sir

  • @hritikroshan260
    @hritikroshan260 Рік тому +1

    Sir u made me love physics.. im pursuing MSC in physics right now . And i still watch ur videos . ♥

  • @jyotirmoypatra8973
    @jyotirmoypatra8973 Рік тому +11

    2:45
    That evil smile of sir after putting our brains to reboot

  • @Anuragmishra_28
    @Anuragmishra_28 Рік тому

    श्रीमान मैं आपका भी विधार्थी रहा हूं आपके द्वारा संचालित बीएससी के कई कोर्सेज मैंने करें हैं और उनसे मैंने बहुत ज्ञान प्राप्त करा है आगे चलकर के मैं भी फिजिक्स में बहुत अच्छा काम करूँगा ।

  • @apnipathshala24
    @apnipathshala24 Рік тому

    Awesome 👍 explanation.
    Kaas mai aapke class me student hota...waqt kaise gujar jata...pta hi nhi chalta.
    Sir, u deserve Bharat Ratna for your physics teaching style.

  • @SinCos-tn3tp
    @SinCos-tn3tp Рік тому +9

    What a teacher man no words ,

  • @offA_Kr_495
    @offA_Kr_495 Рік тому

    Mere दो दो doubts clear हो गए।।
    Thanks a lot sir ji 🙏

  • @hrimonrakshit6840
    @hrimonrakshit6840 Рік тому

    Finally my doubt was cleared. Even I wondered how it could be a TIR. For TIR to happen i should be minimum 90° so that emergence ray is glancing (from the ray diagram). However incidet light is always by laws less than 90°. So the only option left would be a 90° grazing incidence in which case no light would enter the drop.

  • @kumarsourabh4052
    @kumarsourabh4052 Рік тому +1

    So basically, TIR ke jagah it becomes partial internal reflection. Nice. Very very nice sir.

    • @Rajveer-yy7ui
      @Rajveer-yy7ui Рік тому

      Yes. Last year RAJWANT SIR broke my myth. Till then I used to think that Rainbow occurs due to TIR. but there is no such angle on which TIR could occur. It's just partial reflection which causes Rainbow formation.

  • @jivanmuktirasta8825
    @jivanmuktirasta8825 Рік тому

    मैं कभी सोचता था कि hc Verma sir से काश पढ़ पाता जो आज संभव हो पाया गुरु जी को नमन 🙏🙏🙏🙏🙏

  • @gsk_19
    @gsk_19 Рік тому +3

    Thank you sir, I am too physics teacher but the fun of learning physics is really amazing when teacher is H C Verma Sir. Thank you sir for making us fall in love with physics.

  • @aruptimeworkbrainchangebil1125

    Awesome sir you are real gem of India 💕 i love physics

  • @sanjayamabuhanglimbu5103
    @sanjayamabuhanglimbu5103 Рік тому +5

    Blessed with your lectures sir😊

  • @emperor_ashu584
    @emperor_ashu584 Рік тому +1

    Ohh bhai.!!
    Rajwant sir ne bhi ekdm yhi btaya tha
    Pw op.!!!
    HC Verma sir Legendary!!!

  • @SushilKumar-yf7jh
    @SushilKumar-yf7jh Рік тому

    😲wow incredible👍, मान गए साहिब, wha

  • @satyam9159
    @satyam9159 Рік тому +3

    I wonder how lucky the students would be who are studying offline with him 🤗🤗🤗🤗🤗🤗

  • @arshdk911
    @arshdk911 Рік тому +2

    Sir can you please bring a series of videos for iit aspirants 2023 with concepts of +1 & +2and advanced questions .Your lectures are the best.

  • @razamansuri4701
    @razamansuri4701 Рік тому +1

    Circle to bahot sahi banaya aapne😉

  • @kjoplayss7105
    @kjoplayss7105 Рік тому +1

    Every bit of your video is aspiring sir. I am going to appear for JEE in 2024. Would love to get some blessings from you 🙏🙏

  • @ankitthakurankit4764
    @ankitthakurankit4764 Рік тому +1

    2:12 no sir because scrtical angle ko r exceed kar rha hai toh light refract to ho rhi h par r itna hai ki vo refract hoke vaapas andar hi aa jaa rhi hai . baat yha light ke bhar nikalne ki nhi refract hone ki hai kyunki light refract ho rhi h to sare law of refraction shi trike se follow ho rhe h

  • @ashokvishwakrma9809
    @ashokvishwakrma9809 Рік тому

    Bahut salon baad physics ka koi topic padha..... Purani yaden taja ho gyi..... Aur kuchh purane sapne bhi.... jo pure na ho paye 😔

    • @hcverma2928
      @hcverma2928  Рік тому

      कोई और सपना तो पूरा हुआ होगा

    • @ashokvishwakrma9809
      @ashokvishwakrma9809 Рік тому +1

      @@hcverma2928पूरा हुआ सर... लेकिन वो सपना नहीं जरूरत थी। जरूरत सपने पर भारी पड़ गई... फिर भी खुश हूं😊 कभी कभी आपके क्लासेज देख लेता हूं🙏

  • @mr.mcosmosindia9520
    @mr.mcosmosindia9520 Рік тому

    Waise v sir TIR ek hypothetical concept hai kyuki electrodynamics ke anusaar boundary condition har samay aur surface ke har ek point pr valid rheta hai , jahir shi bat hai electric field light ki kuch dushree medium me v hogi to satisfy the boundary condition. Jisse kuch energy kharch hogi , but TIR me to total light reflect krta hai yani no energy loss but there is contradict to TIR concept , the field which move in another medium in TIR call as Eavancent ray

  • @the_classroom
    @the_classroom Рік тому +1

    A great lesson.🙏🏻
    No ads❤

  • @railway9798
    @railway9798 Рік тому

    What a politeness aaj sach me physics sammj aa rah hai

  • @ME1DINESHSINGH
    @ME1DINESHSINGH Рік тому +1

    Sir, You Teaches very welllllll!!!!! 🙏♾️

  • @PramodKumar-sj7wf
    @PramodKumar-sj7wf Рік тому

    an inclined plane makes an angle 30° with the horizontal . A groove OA = 5m cut in the plane makes an angle 30° with OX . A short smooth cylinder is free to slide down the influence of gravity . the time taken by the cylinder to reach from A to O is

  • @YT_Admin_
    @YT_Admin_ Рік тому +3

    Thank you sir for clearing my misconception 🖐️🙏

  • @khattabrahman80
    @khattabrahman80 Рік тому

    Thanks to physics wallah who teached me about this concept in class 12th #physicswallah #rajwantsir

  • @dikhyacreation2119
    @dikhyacreation2119 Рік тому +1

    Thank you Sir , you are a inspiration for all.....❤living Legend

  • @_its_precious_art_452
    @_its_precious_art_452 Рік тому

    You are heart of all us physics lover ❤️

  • @thundernarcos8707
    @thundernarcos8707 Рік тому

    Sir secondary rainbow bhi aap bahut acha samjhate hain

  • @themadhavsharmaphotography7029

    😅Jab aapne sawaal and problem hai kya batadi , toh maine sir pause karke socha. Ek thought jo aya ki kahin woh triangle ki formation hoti bhi hai ya nahin --- yaani mene socha ki kahin 2 jo normals banayi hai humne kya woh centre of drop pe intersect karti bhi hai ya nahin ---- I know i may sound a bit mad , but maine construction karke dekhi poori (taking numbers actually) and pata chala ki haa haan karti hai yaar , fir main kuch na soch paya and aapka reveal of the secret aage ka sun hi liya 😅😅
    and fir i think this is the very reason ki SUNLIght dekehin toh dekho kitni tez and high intensity hoti hai but rainbow kayi baar kitni low intensity ka banta hai kyunki ek major part of light uss point pe refract hokar bahar nikal gayi and bachi kuchi TIR karke rainbow banayi

  • @yashishukla7522
    @yashishukla7522 Рік тому +6

    Hello sir,
    Thank you sir for these wonderful sessions.
    Sir ,I have a request that can you please discuss this year's UPSC physics optional paper (especially paper 2).Also,please suggest some standard books which we can refer for the paper 2 portion.
    Thank you very much

  • @baba4g351
    @baba4g351 Рік тому +8

    Hello sir my name is Ashish Tiwari I am currently studying in class 12 sir I just have a doubt regarding magnetic effect of electric current when two current carrying wires are placed perpendicularly to each other like inverted T with distance x between them
    Now if we analyse the force between them I think action reaction pair law fails 🙏🙏

  • @stranger3944
    @stranger3944 Рік тому

    Nice hairstyle sir..and excellent teaching as always

    • @hcverma2928
      @hcverma2928  Рік тому +1

      So nice of you. Very few comment on this.

  • @kumkumDixitvlogs
    @kumkumDixitvlogs Рік тому +3

    Smart mind does not require smart board 🤗

  • @ashutosh04
    @ashutosh04 Рік тому +2

    The real perception of PHYSICS 🙏🙏🙏🙏🙏

  • @mayankjha2868
    @mayankjha2868 Рік тому

    from the thumbnail i thought that it was albert einstein, lots of love sir❤

  • @Ajay_Vector
    @Ajay_Vector Рік тому

    Now I understand why that term is named as TOTAL Internal Reflection

  • @ashwaniry3451
    @ashwaniry3451 Рік тому +1

    This make me realised that study is still worship. The purity of teaching , chalk, no smart board.

  • @avinashk4750
    @avinashk4750 Рік тому

    The physics teacher I wanted

  • @druwankurrachhoya7072
    @druwankurrachhoya7072 Рік тому +2

    Sir please come to meet sandeep maheshwari session

  • @Riyasingh-gc5cn
    @Riyasingh-gc5cn Рік тому +1

    Even I died but my soul meets you I am jee student i want meet you it is big dream for me but i crack my exam I want to meet you I really even in not good in physics but I injoy physics with yours book your pleasure for physics is blessed every one

  • @themadhavsharmaphotography7029

    TEACHER OF TEACHERS 💚💚
    BTW i am following your spl. relativity lectures on physics lectures channel sir , and i am loving thme

  • @keshavmaheshwari8484
    @keshavmaheshwari8484 Рік тому +1

    Thank for all

  • @Rajveer-yy7ui
    @Rajveer-yy7ui Рік тому

    RAJWANT SIR TAUGHT US ABOUT THIS CONCEPT LAST YEAR...THAT TIR DOESN'T OCCUR. WHAT ACTUALLY OCCURS IS PARTIAL REFLECTION!

  • @AkashSingh-wf1rq
    @AkashSingh-wf1rq Рік тому +1

    The great physics teacher

  • @Abh176ay
    @Abh176ay Рік тому

    Legends of physics
    HC Verma sir
    NV sir
    Alakh sir

  • @sanjayoza2103
    @sanjayoza2103 Рік тому

    All time favourite teacher
    Inspiration 🌟

  • @SahilKhan-eo2bs
    @SahilKhan-eo2bs Рік тому +1

    Most of the student saw tht lecture only bcz of his looks...😂😂EINSTEIN ultra pro max lite

  • @jkmishra5872
    @jkmishra5872 Рік тому

    This is beauty of maa physics

  • @YUDDHYASWA
    @YUDDHYASWA Рік тому

    मुझे जब subject समझ नहीं आ पाता तो मैं कहने लगता हूं की ये subject ही बेकार है , या की कभी और कर लूंगा लेकिन आज पता चला की मैं ही subject की गहराई को बहुत हल्का आंक रहा था और मैं ही समझ नहीं रहा था । धन्यवाद सर ।

  • @dd0280
    @dd0280 Рік тому +81

    Sir I'm a class 10 student.Can you teach me how to think like Einstein?

    • @utkarsh7225
      @utkarsh7225 Рік тому +21

      Make others to think like you

    • @drawforge3920
      @drawforge3920 Рік тому +15

      Nobody can teach you how to think
      You're a human
      Start by being curious as to everything

    • @Rohit-hs7lg
      @Rohit-hs7lg Рік тому +7

      Then teaching is not necessary here

    • @unknownguru-g2015
      @unknownguru-g2015 Рік тому +13

      If Einstein think like you
      Then world don't know who is Einstein

    • @Wealth.forgex
      @Wealth.forgex Рік тому +2

      yes i also want to know that

  • @sakshammishra4989
    @sakshammishra4989 Рік тому

    Raat mein train ki khirki se jhankne par reflection & refraction dono hota hai

  • @mukesh_mahto149
    @mukesh_mahto149 Рік тому +1

    We need teachers like him in our college......our teacher comes to class and just read out things and doesn't explain anything 🙁😐

  • @gyanibaba302
    @gyanibaba302 Рік тому +1

    Baal ud gaye par style abhi baki hai 😂😂😂

  • @Sadique_OB
    @Sadique_OB Рік тому

    Basically each time the ray hits a
    horizon, its intensity decreases.

  • @MayankKumar-ig7uh
    @MayankKumar-ig7uh Рік тому +1

    This concept have studied by ICSE board ch 4 physics. ICSE OP

  • @bishalsarkar924
    @bishalsarkar924 Рік тому

    thank you sir for clearing my misconcept....big fan of yours

  • @prernaofficial2178
    @prernaofficial2178 Рік тому +1

    LOVE U BABA YOU ARE PROUD TO ALL BIHARI😘😘😘

  • @ME1DINESHSINGH
    @ME1DINESHSINGH Рік тому +1

    Sir, Please Explain about V(Potential Difference), I (Current) and R(Resistance) that why It failed with the formula of P(power) =I²R
    From this equation p is directly proportional to the R
    But it's not correct
    Please explain about it Sir?????

  • @akshitrana9861
    @akshitrana9861 Рік тому

    Imagine getting ❤ from HC Verma Sir!

  • @Jam.shed9
    @Jam.shed9 Рік тому

    One of the finest teacher.

    • @hcverma2928
      @hcverma2928  Рік тому +1

      Thanks

    • @Jam.shed9
      @Jam.shed9 Рік тому

      I am your virtual student were I watched your videos and believe me that learned physics from you. Your ability to explain any topic practically, slowly, and patiently makes you a different teacher from other. Your speciality is that you make any physics topic interesting whether its newtonian mechanics or quantum mechanics, your teaching pattern is same for all topics.

  • @AryanAryan-uq2uz
    @AryanAryan-uq2uz Рік тому

    Whenever Physics word comes my father refer u 🥰♥️

  • @But_Whyyyy
    @But_Whyyyy Рік тому +1

    Any intellectually curious person regarding physics here? A person who loves to always ask "why it happened like this" e.g why electron cannot reside in between the shells, whyyyyyy? Why charges attract each other or what is causing the charges to attract each other?
    Is there anyone here who want to become a theoretical physicist?
    I would love to be a friend of like minded people and discuss about this aspect of physics and share thoughts on our career path....

  • @JAY-zy2eq
    @JAY-zy2eq Рік тому +1

    Sir i am jay student of class 10th ..
    School name - sanjeevani vidyapeeth .
    I had so many dreams and one of my dream is to study physics from you sir ...
    Jay sahu

  • @offA_Kr_495
    @offA_Kr_495 Рік тому

    Now I understood sir ...
    Very very धन्यवाद।

  • @virajartsyt
    @virajartsyt Рік тому +1

    sir , why tungsten metal has high resistance other than it is a pure metal and pure metal has low reistance i have studied

  • @mahakal4752
    @mahakal4752 Рік тому +2

    Chashma hatwa liya kya sir ?

  • @dipadipa7549
    @dipadipa7549 Рік тому +1

    sir aaj ke time mai. compilation bahot high ho gya hai. poor bachhe bahar jakar padhai ka kharch nhi aford kr sakate.
    Dear Onrabel Sir aapase nivedan🙏 hai ki . kripya 9th, 10th , 11th and 12th ki physics ka hindi medium videos bana kr UTUBE pr upload kr dijiye. jisase poor(economically) bachche bhi aapake videos ko dekh kr apane concert clear kr sake.
    meri prarthana ko sunane ke liye aapaka dhanyavaad.
    My Dear favorite - H. C. VARMA Sir
    🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

  • @Amritabeautiful
    @Amritabeautiful Рік тому

    Living Legend!

  • @arnabbiswas2906
    @arnabbiswas2906 Рік тому

    Really enjoyed it sir 👍🏻

  • @iteachyou4977
    @iteachyou4977 Рік тому +1

    If you are smart. Smart board will not be required 😂❤️

  • @manannarang87
    @manannarang87 Рік тому +2

    Yeh einstein jaise hai