Quantum entanglement & EPR Paradox explained in Hindi

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  • Опубликовано: 25 дек 2024

Комментарии • 1,4 тыс.

  • @saradabanerjee190
    @saradabanerjee190 6 лет назад +294

    Sorry but photon has spin 1 but you say it has no spin

    • @VigyanTvIndia
      @VigyanTvIndia  6 лет назад +300

      The photon is the quantum of the electromagnetic field. It has an intrinsic degree of freedom, called spin, which is a form of angular momentum and can take on three values: -1, 0, 1. That is, the magnitude of the spin value is at most 1. For this reason, we say that the photon is a spin 1 particle. In order for it to interact with electrons (which are spin 1/2 particles) and conserve angular momentum, the photon needs to have a total spin of 1. For example, if an electron absorbs a photon, there is a chance of a magnetic dipole transition, wherein the electron's spin goes from -1/2 to 1/2. The angular momentum of the electron increases by 1, which is given by the absorbed photon which has precisely this angular momentum.
      The region why I said photons have no spin because Photons are quanta of the electromagnetic field and are traveling waves that have a time varying electric and magnetic field. The electric and magnetic fields are transverse to the direction of travel: that is if it is traveling in the z-direction the electric field can be in the x-direction and the magnetic field in the y-direction.
      It is most convenient to use circular polarizations and when you do this the, electric field of the photon precesses around the direction of motion with a frequency that is the frequency of the photon and when multiplied by Planck's constant is equal to the energy of the photon.
      You can visualize the spin of a photon as being the direction that the electric field vector precesses around the direction that the photon is traveling: it can either go clockwise or counter-clockwise. That's why I have shown the combination of both up and down spin sign in it.

    • @mahender1
      @mahender1 6 лет назад +41

      Sir make a vedio to explain this case with appropriate examples, 🙏

    • @deadskull1411
      @deadskull1411 6 лет назад +16

      Sir I understood a bit but not fully. So I'm not satisfied with what I understood. plzz make a video on this explanation of ur above comment

    • @maasumh.h.9267
      @maasumh.h.9267 6 лет назад +7

      Ajendra Singh bhai vo hydron collider h

    • @saradabanerjee190
      @saradabanerjee190 6 лет назад +1

      Vigyan Tv India sir photos are mass less so they have not helicity state 2s+1 .so photos have not 0 spin.

  • @primeedits840
    @primeedits840 6 лет назад +196

    Agar apke jaise teacher mil jaye to desh bahut tarrki karega...

    • @PranjayVats
      @PranjayVats 6 лет назад +22

      Actually bhai
      and kisi ko tusn bhi nhi jana padta😂😂

    • @Kashi-jz4ew
      @Kashi-jz4ew 5 лет назад +4

      Are bhava jo paryant reservation ahe na to paryant apla desh chutiya lokach chalavnar

    • @qmgthequantummechanicsguy5371
      @qmgthequantummechanicsguy5371 4 года назад

      ruclips.net/video/r2HfQ-bmaqQ/видео.html

  • @AdarshKumar-sj5dn
    @AdarshKumar-sj5dn 2 года назад +1

    मातृभाषा हिन्दी में मेरे द्वारा देखी गई अब तक की व्याख्या। आपने बहुत हीं साधारण तरीक़े से इस गूढ़ विषय की व्याख्या की। साधुवाद आपको 🙏👍

  • @faheemjml
    @faheemjml 5 лет назад +54

    Thank you for uploading this video.
    (10:40) Photon has spin 1 and electron & positron both have 1/2.
    (18:40) In 1964 John Stewart Bell theoretically explained that Quantum Entanglement is possible and John Clouser experimentally confirmed it in 1972🇮🇳🇮🇳🇮🇳

    • @voldemort6572
      @voldemort6572 3 года назад +1

      No bro electron & positron both have 1/2 spin in magnitude but both have opposite signs, bcz photons have no spin. Ur statement violet law of energy conservation.

    • @DevendraGuptaProfile
      @DevendraGuptaProfile 2 года назад

      he did not tell correct description of entanglement at all.

    • @robinrastogi4549
      @robinrastogi4549 2 года назад

      youtube.com/@factsocean99?sub_confirmation=1

  • @_parth_civil
    @_parth_civil 4 года назад +1

    We love you I'm not even intrested in this but i return to this video after 2 years and i probably watch all bout vigyan tv thank you sooooooo much aap hindi me sikha rahe ho ye ehsaan ham kabhi nahi bhulenge or me bohot lucky hu jo mene aapke videos dekhe

  • @notme5543
    @notme5543 5 лет назад +164

    Others : love is most complicated
    Quantum mechanics: hold my hand

  • @shripadwarudkar6487
    @shripadwarudkar6487 3 года назад +2

    Ravi Kumar and Samar Singh
    I am a retired electrical engineer, 73. I am totally impressed by efforts of you two and the entire background team.
    Excellent work being done by you.
    More than 60/70 % of our population will be benefitted by you superb and impressive voice and words.
    However, I am also concerned about the rest. You must be thinking of them.
    May I suggest that please try to dub the lessons in many other regional languages... or collaborate by syndicating with other ventures.
    I will certainly contribute some sum. These efforts will be leading to buildup of nextgen innovations, via better understanding of concepts.
    I am fan already.

  • @Azadbhagatbose
    @Azadbhagatbose 6 лет назад +5

    I dont think its easy to explain such complex topic with such authenticity. Thanks a lot.

  • @nirajkhatri5366
    @nirajkhatri5366 6 лет назад +96

    I waited for this video from long time.....
    Thank you so much for uploading such a great video👌👌👌👌
    Lots of love and respect for your channel from Nepal 🇳🇵

  • @KumarJy_
    @KumarJy_ 6 лет назад +16

    "Vigyan TV India" and "Get set fly" these two r my most favourite RUclips Channel.
    Thanks for sharing your valuable knowledge with us. 👍

  • @SanjayKumar-fo8bg
    @SanjayKumar-fo8bg 6 лет назад +10

    Bahot time se wait kar rha tha is topic p video ka thanks bro....

  • @yashsrv
    @yashsrv 6 лет назад +52

    Best youtube science channel

    • @robinrastogi4549
      @robinrastogi4549 2 года назад

      youtube.com/@factsocean99?sub_confirmation=1

  • @awakenlife42
    @awakenlife42 4 года назад +3

    Came across this channel a few days back, I feel glad that a youtube channel in India has a tendency to explain science with engaging visualization. Keep it up #Vigyan Tv India 🙌

  • @AV-hi4hu
    @AV-hi4hu 6 лет назад +4

    Best thing is..You always bring new concepts to the block.

  • @harshmishra7007
    @harshmishra7007 3 года назад +5

    The only man who is giving some undoubtedly real knowledge of universe and quantum physics 🙏

  • @AV-hi4hu
    @AV-hi4hu 6 лет назад +65

    Scientists ne ek new planet ko form hote hue pics li hain..Uspe ek informational video banao bhai..Short bhi ho to chalega..Apke channel pe quality contents hote hain hamesha..

  • @SG15SEP
    @SG15SEP 3 года назад +4

    BRO
    YOUR EXPLANATION WAS AWESOME
    JUST SPEECHLESS
    I AM JUST 14 YEARS AND I UNDERSTOOD EVERYTHING

    • @EncoreXGaming
      @EncoreXGaming 3 года назад

      Bhai tumhare age mai to mai pogo dekha krta tha😢

    • @Ritam_gg
      @Ritam_gg 3 года назад

      Same

  • @manishmallya8002
    @manishmallya8002 6 лет назад +22

    Brother, you'll have to make awesome videos, you'll have to admit that you will not be in the whole RUclips channel like you.👌👌

  • @melegenD
    @melegenD 2 года назад +1

    I don't need school or collage if teachers would explain this much clearly and lovely ❤️🔥. Very amazing bro. Keep it up

  • @parthapratimlala6751
    @parthapratimlala6751 4 года назад +4

    Very lucidly explained. Without complicating with maths. I will request you to make a presentation on how it all began. What made the physicists think quanta as a departure from classical physics. How it all started ? From what missing block of zig saw puzzle it all began? If the video is already there please refer me the title. Thanks.

  • @debrajdas2718
    @debrajdas2718 6 лет назад +11

    I am gradually falling in love with quantum mechanics due to your video....it would be much better if you can also include the corresponding equations which describes the thing more properly and accurately....

    • @robinrastogi4549
      @robinrastogi4549 2 года назад

      youtube.com/@factsocean99?sub_confirmation=1

  • @hsingh8838
    @hsingh8838 4 года назад +27

    Exact 2 Year has passed.
    I'm watching this After DARK

  • @Awakenbeing
    @Awakenbeing 6 лет назад +1

    I really appreciate vigyan TV efforts to explain complex scientific knowledge in plain hindi for common indian students. Very nice work

  • @abhik294
    @abhik294 6 лет назад +5

    Yesssss......Vigyan TV ka video aa gya😄😄😄😄

    • @viralpoint4636
      @viralpoint4636 6 лет назад

      ruclips.net/video/86f2SlKsvsI/видео.html check this

  • @manojboharpi8769
    @manojboharpi8769 6 лет назад +1

    Shandar jabardst jindabaad....
    Pllzz continue...yarr...
    Kash hamare teachers ne hame esa padaya hota.....😅😅

  • @bhaveshbisht8543
    @bhaveshbisht8543 6 лет назад +17

    The movement I saw you upload this video I immediately jumped and clicked on the video

    • @VigyanTvIndia
      @VigyanTvIndia  6 лет назад +3

      Great. Thanks for your support and love

  • @sahilpathhan8553
    @sahilpathhan8553 5 лет назад

    Wah yaar!
    Kya information di hai! Super!👌👌👌
    Quantem, photon, electron, nutron, tone- tone😊 all is awesome!!👌👌

  • @greatnature6028
    @greatnature6028 6 лет назад +6

    You are sharing very good knowledge and I experience its very helpful for me

  • @mallusatigoudar6611
    @mallusatigoudar6611 Год назад

    Outstanding explanation...after many videos i finally came to know about quantum entanglement...

  • @HarpreetKaur-ul7rg
    @HarpreetKaur-ul7rg 6 лет назад +4

    another Great video. U create my interest in physics everytime

  • @naman971
    @naman971 6 лет назад +1

    best science channel on RUclips

  • @RANBIR970
    @RANBIR970 5 лет назад +5

    I love your attitude the way you explain...Superb. make a whole concept about Atomic Structure and Modification of Various Postulate and theory from very beginning. Tnx

  • @nayan_moni_das
    @nayan_moni_das 6 лет назад +1

    Intejar ka fal mitha hota he suna tha aj prof v milgeya
    Nice video sir love your work ❤️

  • @abhighogle4090
    @abhighogle4090 6 лет назад +7

    Nice Dost
    Aap jis prakar se explain karte
    That was amazing 🙌🙏😍

  • @harshlee7943
    @harshlee7943 6 лет назад

    VERY COOL VERY VERY SUPER
    APP JESI EXPLANATION OR APP KI TOPIC KNOWLEDGE KOI NAHI DYE SAKTA RUclips PE...... WOW
    SUPER GENIUSES,👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏

  • @prasadchandi9401
    @prasadchandi9401 6 лет назад +9

    Goooooood explanation and good voice I am waiting u r video all the time gooood subject channel keep it sir

    • @VigyanTvIndia
      @VigyanTvIndia  6 лет назад

      Thanks Prasad

    • @codingspace
      @codingspace 6 лет назад

      hello sir if you like these videos then you will definitely love my channel i also make animated science videos

  • @oldgods914
    @oldgods914 6 лет назад

    Ravi bhai you are a genius... Keep it up.. You are providing best information to us... Baki hindi channels toh bs theory or kahi shune bate bataate hai bass but tum puri comp. News dete ho.. So thanku ravi bhai

  • @AnilPatel-uj8kc
    @AnilPatel-uj8kc 5 лет назад +3

    Very great and adorable job by #VigyanTvIndia. Before seeing your animations and explanations I was well satisfied that there is no RUclips science channel in Hindi which can even withstand the English science animations and explanations. But today I'm feeling very relaxed and happy to see myself being false.
    I think, it would be great if you expand your this super talent to biology animations too.
    Thanks alot sir! for your this great job.

  • @wolfofdalalstreet1841
    @wolfofdalalstreet1841 6 лет назад

    Best channel on RUclips..

  • @ritsnay4717
    @ritsnay4717 6 лет назад +6

    Wow another amazing episode...👌👍✌🙌 I was waiting for this one...👏❤

    • @utkarsh3708
      @utkarsh3708 6 лет назад +1

      From anime to other channels you are even here .
      Seriously I have seen you more than 10 times this week

  • @SahilSahil-ig8ie
    @SahilSahil-ig8ie 3 года назад

    U r really knowble personality u r expert in ur own speech as though it seems u r speaking in english.thankx

  • @amitjha1072
    @amitjha1072 5 лет назад +5

    Really appreciate the effort you put into to make toughest concept so easy to understand that we all can grasp....

  • @stone8398
    @stone8398 6 лет назад +2

    This is what we want in schools n colleges .. not only theory by mouth

  • @mahender1
    @mahender1 6 лет назад +7

    Bhut achha vedio bnate ho bhai👌👌 isse science me bhut interest bda h. I'm a science student. Pr Yr late bhut krte ho vedios upload krne me sad.

  • @MonikaVerma-is1rd
    @MonikaVerma-is1rd 6 лет назад +1

    Thank you so much for this video. I really need it. Because I faced a problem to understand EPR paradox. Which is clear now

  • @shiwaniailawadhi1640
    @shiwaniailawadhi1640 6 лет назад +28

    please make a video on lyman alfa atmos (lab 1)

    • @radhagupta6987
      @radhagupta6987 6 лет назад +1

      Shiwani Ailawadhi wht is lyman alfha atom sir

    • @pankajohri7726
      @pankajohri7726 5 лет назад

      Shiwani Ailawadhi ek h baat baar 2 repeat kr rhe ho sr aap

  • @TheJagadis
    @TheJagadis 5 лет назад

    U r super Gourav. Ur explanations and depth of knowledge not comparable with any channel.

  • @jaygorakhiya1316
    @jaygorakhiya1316 6 лет назад +10

    if we throw an entangled particle in a black hole and one on earth we can know it's state and hence information is not lost,,,unless a particle can exist as particle inside black hole not in form of pure energy.

    • @aryans9600
      @aryans9600 5 лет назад

      I think it will be again in a superstate form

  • @Vijaygambhir-n7w
    @Vijaygambhir-n7w 2 месяца назад

    Thanks.u made easy to understand to those who are not students of physics

  • @vishalrana9836
    @vishalrana9836 6 лет назад +12

    Please do a short powerful video on intro of quantum mechanics

  • @merajhussain470
    @merajhussain470 6 лет назад +2

    Allmost 1 month ho gaya hai abb aiye aap ki video well explained ravi sir (can u explain 1st second of big bang and its cosmic inflation) 🤔🤔🤔🤔🤔 and u make Jharkhand proud ❤❤❤

  • @exoplanets
    @exoplanets 6 лет назад +15

    Amazing !

  • @varishsingh8801
    @varishsingh8801 4 года назад

    Your channel is best .
    thankyou for creating Quantum engalment video.

  • @dev_o_9842
    @dev_o_9842 6 лет назад +43

    Also explain Copenhagen interpretation

    • @advkaliyar
      @advkaliyar 6 лет назад +2

      universe secretes it has been explained in position taken by Niels Bohr. Listen at 3.28 onwards

  • @ryostyles6434
    @ryostyles6434 4 года назад +2

    That really gave me goosebumps. Thanks for such amazing info

  • @ayushpathak21
    @ayushpathak21 5 лет назад +3

    Please start a regular class on quantum and classical physics which covers whole of both subject because you have a wonderful capacity to explain these subjects which are lacking in our country so aforesaid is my humble request to you.

    • @robinrastogi4549
      @robinrastogi4549 2 года назад

      youtube.com/@factsocean99?sub_confirmation=1

  • @am__amaan3831
    @am__amaan3831 3 года назад

    Very Good video.... Full of Knowledge.... YOU DOING VERY GOOD WORK.... I UNDERSTAND QUANTUM ENTAGLEMENT AND PHOTOS CHARGE
    .....

  • @HouseofSciencebyHS
    @HouseofSciencebyHS 6 лет назад

    Wow.. awesome video...very educational..mujhe is video ka kabse intezaar tha bhai...

  • @ajithsingh96
    @ajithsingh96 6 лет назад +4

    Always seen your video very informative...

  • @pallavichaudhary7250
    @pallavichaudhary7250 4 года назад

    Best RUclips science channel

  • @adityanikam6534
    @adityanikam6534 6 лет назад +11

    Make a video on which life come first on earth

    • @invisible1902
      @invisible1902 6 лет назад +1

      Aditya ... amoeba came first means single cellular being

  • @bhanu5163
    @bhanu5163 5 лет назад

    bhai smjhane ka tareeeka ek dum zbrdst .. faaaadu

  • @darshanbaishya2668
    @darshanbaishya2668 6 лет назад +7

    Next video on neutrino oscillations please!

  • @bhubaneswarvibes5
    @bhubaneswarvibes5 2 года назад

    Nobel prize mila h iss topic m. Thank you teacher for explaining

  • @jaygorakhiya1316
    @jaygorakhiya1316 6 лет назад +5

    does mass curve space-time or energy?

    • @HouseofSciencebyHS
      @HouseofSciencebyHS 6 лет назад

      Realist reel any kind of matter in universe curves spacetime fabric....but by different amount...like if the mass is greater then curvature will also be big..

    • @geetikasingh2797
      @geetikasingh2797 6 лет назад

      It curves space time

    • @Ritam_gg
      @Ritam_gg 3 года назад

      Just like a paper with metal ball curves it downwards

  • @TheSharad97
    @TheSharad97 5 лет назад

    I love watching videos related to science...your all videos are quite knowledgeable..

  • @mrnice-eu1bs
    @mrnice-eu1bs 6 лет назад +5

    0 dislike
    Nice video boss

  • @bhuneshsingh8053
    @bhuneshsingh8053 6 лет назад +1

    Brother, your explanation is superb. And your communication/describing skills are fantastic.
    Pls continue doing this great work!!!

  • @mushfiqueaalam683
    @mushfiqueaalam683 5 лет назад +8

    The man who easily explained quantum mechanics 🙃🙃🙃🙃

  • @rajeevsethiye3409
    @rajeevsethiye3409 6 лет назад

    Kash hamre school bhi aap jaisa koi teacher hota to aaj me bhi Quantum phisycs ka master hota.
    Bahot badiya bhai👍

  • @sciencetvindia6938
    @sciencetvindia6938 6 лет назад +8

    Sir please make a video on time travel

    • @VigyanTvIndia
      @VigyanTvIndia  6 лет назад +3

      Lots of videos on time travel are already there. That's the reason why I don't make videos on Time Travel.

  • @chandan3179
    @chandan3179 6 лет назад

    I wanna be a cosmologist and this channel helps me a lot. Thank you

  • @shis10
    @shis10 6 лет назад +3

    Late Video kyo Bhai :..😃 BTW Awsome video keep it up 👍👍👍❤. Aur sameer singh narration 👌👌👌Superb

    • @shis10
      @shis10 6 лет назад +1

      CleverFacts 😃👍

  • @glory6998
    @glory6998 6 лет назад +1

    Thank u sir ......i love physics ....apka explain kerne ka way ...hai awwwwwsum...🙏👍🤓

  • @chetnabudhraja3253
    @chetnabudhraja3253 6 лет назад +74

    WHAT IS FULL FORM OF EPR???
    EINSTEIN PODOLSKY ROSEN 😆😆

  • @abhivandan8710
    @abhivandan8710 2 месяца назад +1

    The best channel

  • @mukeshK433
    @mukeshK433 6 лет назад +6

    Bhai... Plzz 1 video bnao jisme
    1. Electric Potential
    2. Potentai Difference
    3. Difference of Atom And Ion
    4. What is charge basically....
    Explain kar k plzz.... I m a student... and its urgent.. Plzz.... I m ur vry big fan.. Explain kr k.. Specially potential and potential difference

  • @aazibification
    @aazibification 6 лет назад

    Very tough to understand and more tougher to explain it which you have done very well.

  • @vishaljaiswal4364
    @vishaljaiswal4364 6 лет назад +10

    Bro plz
    Eternally collapsing objects per video bana do bahut din se bol raha hoon

    • @VigyanTvIndia
      @VigyanTvIndia  6 лет назад +8

      Patience rakho bhai..Maine bola hai to jaroor banaaunga...Jab quantum entanglement shuru kar diya hai, to isse related kuch topics ko to khatam kar lene do pahle.

    • @vishaljaiswal4364
      @vishaljaiswal4364 6 лет назад

      Okk 😊😊😊

  • @SanketGuptaMusic
    @SanketGuptaMusic 4 года назад

    No one can create best content like him

  • @boiledpotato8577
    @boiledpotato8577 6 лет назад +9

    Bhai aap abhi kya kar rhe ho matlab college yaa job..?
    plzz ans.

    • @VigyanTvIndia
      @VigyanTvIndia  6 лет назад +15

      College kaafi pahle complete kar chuka hu..Job karta tha par pasand nahi aaya isliye chod diya. Abhi I work on my own

    • @boiledpotato8577
      @boiledpotato8577 6 лет назад +2

      Apne kaun se subject se college kiya aur kaun sa course

    • @rajeshjha8674
      @rajeshjha8674 6 лет назад +1

      Vigyan Tv India plss tell us did you do your studies in science. I mean which course had you opted in college

    • @deepanshujindal6699
      @deepanshujindal6699 6 лет назад +1

      Vigyan Tv India why u nt become phycisit

  • @chanchalmukherjee5422
    @chanchalmukherjee5422 6 лет назад +1

    Excellent, wonderful. I waited for this long time.

  • @jashanjeetsingh7520
    @jashanjeetsingh7520 5 лет назад +5

    I think entangled pair wormholes ke jriye jude hoge jiski vje se unke beech ka distance negligible ho jata hoga kyuki space time itna bend ho jata ho ga ki light ko negligent time lgta hoga
    Meri iss baat parr gaur jroor krna pls pls pls

  • @AmandeepSingh-qe7ni
    @AmandeepSingh-qe7ni 5 лет назад +1

    Sir ho skta hai do particals ke bech mein information light ki speed se kae guna jayada teji se travel krne ki wajaye kisi short cut root se share hoti ho.....

  • @rajburad5372
    @rajburad5372 5 лет назад +5

    state of electron is also relative with respect to different person

    • @robinrastogi4549
      @robinrastogi4549 2 года назад

      youtube.com/@factsocean99?sub_confirmation=1

  • @richarana8954
    @richarana8954 6 лет назад

    Kaafi time bad apka video aaya.. super.

  • @ChintuPrasadChin2pra
    @ChintuPrasadChin2pra 6 лет назад +6

    Aap best hoo no doubt kya explanation hy love you ravi ji aur samir ji

  • @deadskull1411
    @deadskull1411 6 лет назад

    I have no words. bohot Accha video banaya Aapne

  • @rahulvishwakarma6235
    @rahulvishwakarma6235 6 лет назад +3

    Love from Allahabad😍

  • @devilseye3794
    @devilseye3794 6 лет назад +1

    16:00 i m agree with this theory 👍👍
    It's possible that entangled particals have a pre fixed pattern of Changing spin,
    jst like if 2 balls changes color at a fixed rythem, then, when 1st box ball color is red then other box's ball must be green and vice versa

  • @mr.nobody4498
    @mr.nobody4498 5 лет назад +3

    I think, only in 3rd Dimension light having fastest speed. But, may be the entangled particals using the other dimensions for sharing the information. A type of dimension in which the time become super slow and it will affect light speed too. So, the communication of both particals become faster then light speed.

  • @Manoj-550
    @Manoj-550 2 года назад

    This year ( 2022) Noble prize was given in physics in subject for quantum power...and I understand clear this thing by your beautiful video ....😊🌿🍂☘️ which made 4 year ago..🌾

    • @robinrastogi4549
      @robinrastogi4549 2 года назад

      youtube.com/@factsocean99?sub_confirmation=1

  • @kappustyle
    @kappustyle 4 года назад +113

    Who is here after watching DARK? 🤟

  • @kailashkirthy9882
    @kailashkirthy9882 6 лет назад

    Bhai your hardwork is clearly seen in the video ! Hatsoff to your hardwork and dedication

  • @SAGARKUMAR-ht1co
    @SAGARKUMAR-ht1co 6 лет назад +3

    Knowledge se jyda confusion

  • @g1ls
    @g1ls 6 лет назад

    Bohot badhiya explanation thi bhai..👌👌👌

  • @Ritikkumar-pn7zd
    @Ritikkumar-pn7zd 6 лет назад +3

    Next video jldi lao

  • @varunkohli2351
    @varunkohli2351 6 лет назад

    Sir your explanation is best in the world

  • @akashgill3094
    @akashgill3094 6 лет назад +4

    Kalpana chawala par bhi video banaye Plz

  • @swapnilsukunge9846
    @swapnilsukunge9846 6 лет назад

    Waited very long time for this video. Lots of love to channel 😍