Myopia & Hypermetropia (Hindi) | Human eye and the colourful world | Physics | Khan Academy

Let's explore the common defects, Myopia (shortsightedness) and hypermetropia (farsightedness) using ray diagrams.
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Пікірлер: 385

  • @khanacademyindia
    @khanacademyindia4 жыл бұрын

    Hey, here's a dedicated CBSE course on our website where you can practice all the concepts related to this video and more. And oh, it's always free. www.khanacademy.org/science/in-in-class10th-physics/in-in-the-human-eye-and-the-colourful-world

  • @hardprank8057

    @hardprank8057

    4 жыл бұрын

    Sir aap only physics hi padate ho chemistry nhi padate

  • @himanikoranga1842

    @himanikoranga1842

    4 жыл бұрын

    Really sir... Thanks

  • @henilsnehapatel3062

    @henilsnehapatel3062

    4 жыл бұрын

    Sir can u say which app u use in explainatiin pls

  • @toradebbarma4795

    @toradebbarma4795

    3 жыл бұрын

    Sir mujhe hypermyophia samajh nahi aya:(

  • @kalpeshtiwari7885

    @kalpeshtiwari7885

    Жыл бұрын

    Thank you so much

  • @mr.xgaming1126
    @mr.xgaming11263 жыл бұрын

    Your voice is like dubbing artist

  • @shivamtiwaryslp8422

    @shivamtiwaryslp8422

    3 жыл бұрын

    O yes 😊

  • @loveysharma9587

    @loveysharma9587

    3 жыл бұрын

    I think he is

  • @swarupchoudhar0568

    @swarupchoudhar0568

    3 жыл бұрын

    yes absolutely right😀😀

  • @newsbharatentertainbyankur

    @newsbharatentertainbyankur

    3 жыл бұрын

    @Adisakti films

  • @newsbharatentertainbyankur

    @newsbharatentertainbyankur

    3 жыл бұрын

    @Wave

  • @kavitapabelkar9631
    @kavitapabelkar96313 жыл бұрын

    Very well explained, thank you !! Will pass on the link to my students. I don't think I could have explained any better.

  • @nanhi7173
    @nanhi71735 жыл бұрын

    Before watching your videos: I hate Physics 😭😭😭 After watching your videos : I started understanding and liking physics. Thanks Sir 😊😊😊

  • @anilsarma9394

    @anilsarma9394

    4 жыл бұрын

    I also

  • @ariyan3836

    @ariyan3836

    4 жыл бұрын

    Abe 10th board aa raha hai

  • @Morningstarintheroses

    @Morningstarintheroses

    4 жыл бұрын

    @@ariyan3836 🙂

  • @animalworld5155

    @animalworld5155

    3 жыл бұрын

    100th like

  • @purnimadas1100

    @purnimadas1100

    3 жыл бұрын

    Same

  • @wechillars9130
    @wechillars91303 жыл бұрын

    😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭 where this video was ... i was in this confusion from 3 -4 months that how our lens change shape how the image is formed behind or in front of retina..... thankyou sooo much sir ...your teaching style is awesome 💯💯

  • @mogli8963
    @mogli89635 жыл бұрын

    Make lecture related to *Neet* exam!!

  • @Nik-zy7hj
    @Nik-zy7hj4 жыл бұрын

    You r great sir... 🙏🙏🙏

  • @bariyazehra5961
    @bariyazehra59613 жыл бұрын

    You saved me from failing ...finally i am cleared with these concepts ...Thnk you 💜

  • @sharikahasan5495
    @sharikahasan54953 жыл бұрын

    Sir....wowowoowowowo....You've cleared all my confusions....Thank you...

  • @army-mf9fj

    @army-mf9fj

    2 жыл бұрын

    Army?

  • @vaishnavigupta2501

    @vaishnavigupta2501

    2 жыл бұрын

    Amii💜

  • @pujachaudhary4581

    @pujachaudhary4581

    2 жыл бұрын

    Yes

  • @himanshusharma8455
    @himanshusharma84554 жыл бұрын

    Sir bauhaut accha smjhaya

  • @sanjayaam
    @sanjayaam2 жыл бұрын

    Superb explanation of the concept. I was searching all over the web and nothing explains it like you have done. The important point is that when the eye lens is in unaccommodated position (looking at a far away object) the focal point is such that light from far off objects is focussing in front of the retina thus causing blur. *But* when looking at near objects the eye accomodates and moves the focal point around so that the image focusses on the retina. What this theoretically means is that people with myopia only need glasses when looking at something distant as when looking at something close like reading a book do not need glasses. This point is significant as today there is no such guidance for myopic people. They are asked to wear glasses all the time even when doing up close activities like reading. And in doing so they end up focusing the image behind the retina thus causing what is called hyperopic defocus which results in elongating their eyeball (esp for young people whose eyes are in growing stage) which results in further increas in the myopia power.

  • @hussainnasir1339
    @hussainnasir13394 жыл бұрын

    Thank you so much sirr!! It was very informative.

  • @edu_withintrest3764
    @edu_withintrest37644 жыл бұрын

    Thanxx sir pura samjh Aaya aache se..thank you

  • @India02344
    @India023444 жыл бұрын

    Sir please explain the spherical mirror concept

  • @deepmalasharma5479
    @deepmalasharma54794 жыл бұрын

    Ur explaination is best sir👌

  • @manishkashi9099
    @manishkashi90994 жыл бұрын

    बहुत अच्छा समझाया "कुछ ऐसे"😁

  • @siddhipatil.4029
    @siddhipatil.40292 жыл бұрын

    Animination is best for defect Good job 👍👍

  • @ViewR880
    @ViewR8805 жыл бұрын

    Watching from Bangladesh. Your teaching process is very good. Thanks bro.....

  • @ujjawalkumar2767

    @ujjawalkumar2767

    4 жыл бұрын

    Ujjawal Kumar

  • @himanikoranga1842

    @himanikoranga1842

    4 жыл бұрын

    You are fake

  • @himanikoranga1842

    @himanikoranga1842

    4 жыл бұрын

    You live in india not Bangladesh

  • @statusyt1951
    @statusyt19513 жыл бұрын

    I became a big fan of your explanation.....🤩

  • @ankitpapneja3291
    @ankitpapneja32914 жыл бұрын

    Which software are you using to draw these images and illustrations

  • @ankitpapneja3291

    @ankitpapneja3291

    3 жыл бұрын

    @Ashutosh Pandey matches more with autodesk sketchbook pro

  • @devilking2397
    @devilking23973 жыл бұрын

    Your explanation is super.I can eaisly understand things from you what i not understand by reading it myself

  • @vidhi_niralavidhi_nirala9104
    @vidhi_niralavidhi_nirala91044 жыл бұрын

    Awesome explaination.....👌👌

  • @sandhyabanka7520
    @sandhyabanka75204 жыл бұрын

    Awesome way to explain!!! U r the best who made me understand this good!! Thanks so much fr ur help . Now I love physics as your explanations were awesome and once again thank you so much!!😀

  • @shazmawalikhan9285
    @shazmawalikhan92852 жыл бұрын

    Absolutely Amazing explained....

  • @abhinavraj3579
    @abhinavraj35794 жыл бұрын

    Hats off to you......

  • @imranjaved7437
    @imranjaved74373 жыл бұрын

    from rangpur,Bangladesh loving these vedios great learning

  • @tausiya114
    @tausiya1142 жыл бұрын

    Thank you so much very nice explanation...well done 👍 bro keep it up 👍🙌

  • @kuldeepvaishnav5311
    @kuldeepvaishnav53113 жыл бұрын

    Thnx for the superb explaination❤️❤️ Btw same pinch i also have myopia

  • @TUL0346
    @TUL03462 жыл бұрын

    This video is very helpful 👍👍

  • @katilbrothersgaming992
    @katilbrothersgaming9924 жыл бұрын

    Nice sir I want more information about the chapter

  • @sonika4175
    @sonika41754 жыл бұрын

    Superb Explaination sir!!!🙇

  • @basirulislam333
    @basirulislam3332 жыл бұрын

    What a very nice explanation!!!!!

  • @AiInspire7
    @AiInspire72 жыл бұрын

    I understand much by your voice only Thank u so much bro❤

  • @khushisahukhushisahu8673
    @khushisahukhushisahu86733 жыл бұрын

    Amazing sir very best explanation.

  • @thegodfather4614
    @thegodfather46143 жыл бұрын

    Very clear cut explanation 💯

  • @FarukKhan-xg7fv
    @FarukKhan-xg7fv4 жыл бұрын

    very nice video ... baki sab video se ye bohot helpful ha

  • @aribanaaz1871
    @aribanaaz18714 жыл бұрын

    Nice 👌thanks Sir 🙇

  • @ashokkumarsingh1305
    @ashokkumarsingh13055 жыл бұрын

    U are great bhai

  • @tapinderjitsingh8361
    @tapinderjitsingh83614 жыл бұрын

    Itna acha explanation only in a breath 🤐

  • @PrinceKumar-oz1ux
    @PrinceKumar-oz1ux5 жыл бұрын

    Niceeee sir

  • @dineshmandal2335
    @dineshmandal23355 жыл бұрын

    Very good explanation! Thanks Sir

  • @tapankumarsingh304
    @tapankumarsingh3043 жыл бұрын

    Thanks For Ur Explaination....☺️😊

  • @educationworld7530
    @educationworld75303 жыл бұрын

    U r awsome bro your videos are knowledgeable👌

  • @priyamanik6640
    @priyamanik66405 жыл бұрын

    Superbbbbbbbb dialogue... Pichak jata h 😂😂😂😂😂

  • @pankajbaghel397

    @pankajbaghel397

    4 жыл бұрын

    Kuch bhi bola ho samjh to aaya

  • @thingsforever5898

    @thingsforever5898

    4 жыл бұрын

    Don't laugh on any one don't find fault with others

  • @damnyatharth

    @damnyatharth

    4 жыл бұрын

    Yes dont laugh on anyone

  • @jayeshpatil3974
    @jayeshpatil39743 жыл бұрын

    Loving the word 'puchaka dena'

  • @abhijitsadhukhan8477
    @abhijitsadhukhan84775 жыл бұрын

    Best ever.... You deserve subscription...😎😎😎

  • @mahendrazimate4760
    @mahendrazimate47603 жыл бұрын

    Sir your teaching is very nice😍

  • @manni6303
    @manni63034 жыл бұрын

    Gajab bataye hai sir superb

  • @SACHINKUMAR-zt7qm
    @SACHINKUMAR-zt7qm3 жыл бұрын

    Nice . I like this video and I also understand this topic..

  • @gamersandtutor...2981
    @gamersandtutor...29814 жыл бұрын

    Nice style of teaching

  • @sanjanabagore356
    @sanjanabagore3565 жыл бұрын

    Nice sir

  • @rahulkumarraj6626
    @rahulkumarraj66264 жыл бұрын

    Thank u for this vdo

  • @dhirajmahapatra1121
    @dhirajmahapatra11214 жыл бұрын

    we want carbon and its compounds

  • @riyazjulgaji477
    @riyazjulgaji4773 жыл бұрын

    Great super.....Amazing explanation... I M Jasmine

  • @SubhashYadav-so6of
    @SubhashYadav-so6of3 жыл бұрын

    Your explanation is super duper 😀😀😀😀🤩🤩🤩.........

  • @dkgamingytr8508
    @dkgamingytr85084 жыл бұрын

    Sir Ray's are parallel then

  • @hrishikeshboruah6029
    @hrishikeshboruah60295 жыл бұрын

    Superb one

  • @ftAlpha-yz1zs
    @ftAlpha-yz1zs4 жыл бұрын

    Jhakash hai sir

  • @ramniwasrajput7265
    @ramniwasrajput72654 жыл бұрын

    Thanks it is very helpful

  • @sugrivkumar8508
    @sugrivkumar85084 жыл бұрын

    Good information 👌👌👌👌👌

  • @raxaparikh7669
    @raxaparikh76693 жыл бұрын

    thank you good if kuch bhi jarasa dekha after eye close bhi vo dikai deta he to reason and solution kya?

  • @tkhankhoje39
    @tkhankhoje395 жыл бұрын

    Great one sir

  • @ManishKumar-jl2vl
    @ManishKumar-jl2vl4 жыл бұрын

    Is it possible that ciliary muscle cant stretch or contract properly and thus causes these two defects or is it due to defects in the eye lens. Plz enlighten me

  • @amritaganguly2531

    @amritaganguly2531

    9 ай бұрын

    Yes , it's possible. It's occur at old age . This is called presbyopia . It can be corrected by *bifocal lens*.

  • @risingaayush7995
    @risingaayush79953 жыл бұрын

    Great explanation sir

  • @Gauravyadav-sy5jo
    @Gauravyadav-sy5jo5 жыл бұрын

    Sir please some video to chemistry.

  • @neelimasharma6781

    @neelimasharma6781

    4 жыл бұрын

    To nhi bro of chemistry

  • @mannshah
    @mannshah2 жыл бұрын

    Batman is very good🤣🤣. But, on a more serious note, this really helped me. Thanks 😊.

  • @ffmafiaofficialgaming502
    @ffmafiaofficialgaming5023 жыл бұрын

    These time is good lecture

  • @shakeelahmad5549
    @shakeelahmad55495 жыл бұрын

    Wow superb ! Keep it up.

  • @gyanchandsoni716
    @gyanchandsoni7165 жыл бұрын

    thank you so much Sir

  • @harshitbhorga629
    @harshitbhorga6295 жыл бұрын

    nice explanation

  • @navindaiwalkar1143
    @navindaiwalkar11434 жыл бұрын

    Sir please make video on hypermetropia or astigmatism types

  • @Deveshnigam777
    @Deveshnigam7774 жыл бұрын

    Sir in last What causes this problem [myopia] eyeballs big and lens thick kyo ho jata h [Hypermetropia] eyeballs are small and lens are thin why these problem sir please reply 🙏🙄

  • @sandhyabanka7520

    @sandhyabanka7520

    4 жыл бұрын

    Good question!!

  • @mikelarusso7597

    @mikelarusso7597

    4 жыл бұрын

    Due to. Movement of ciliary muscles

  • @mikelarusso7597

    @mikelarusso7597

    4 жыл бұрын

    R UK Indian?

  • @mikelarusso7597

    @mikelarusso7597

    4 жыл бұрын

    Can I talk in hindi?

  • @mikelarusso7597

    @mikelarusso7597

    4 жыл бұрын

    Open NCERT see the concept of dark room and light room u will understand

  • @aditisingh8641
    @aditisingh86415 жыл бұрын

    Thanku sir

  • @sudhanshhh_2004
    @sudhanshhh_20043 жыл бұрын

    What a Voice❤️😘

  • @asifsaif7019
    @asifsaif70194 жыл бұрын

    Your explanation is good

  • @nadim932
    @nadim9324 жыл бұрын

    Awesome

  • @padolemokshada4084
    @padolemokshada40844 жыл бұрын

    Sir aapne bhut aachese padaya

  • @dineshupadhyay384
    @dineshupadhyay3845 жыл бұрын

    You are best

  • @vanshmudgal3410
    @vanshmudgal34103 жыл бұрын

    Name the software which you are using to draw and illustrations

  • @vishvjeetsingh2168
    @vishvjeetsingh21685 жыл бұрын

    Hlo sir I have one doubt, in high conversing power of eye lens, is the near point shift less than 25 cm

  • @poojapandey2717

    @poojapandey2717

    5 жыл бұрын

    No, it remains same b'cauz when the eye lens become highly conversive then the eye defect called myopia arises in which we can't see the distant object. In this eye defect we can see the near objects clearly.

  • @knowthefacts5872
    @knowthefacts58723 жыл бұрын

    Really good explanation

  • @anjaliraghav299
    @anjaliraghav2994 жыл бұрын

    Best video Thanks

  • @ghulamjunudchishti3440
    @ghulamjunudchishti34404 жыл бұрын

    Good job

  • @Getting_W
    @Getting_W4 жыл бұрын

    Sir high power waali case me aapne kaha ki light rays thodi zyada deviate karegi lekin aapne rays ko min. Focal length and max. Focal length ke beech se pass kar diya . 4:46

  • @sakshamkhokhar3530
    @sakshamkhokhar35303 жыл бұрын

    Sir why you stopped uploading🥺🥺🥺🥺🥺 plzz tell sir 😓😓😓😓

  • @all_rounder3247
    @all_rounder32473 жыл бұрын

    Katai jaher op samjhaya sir

  • @muskaanmuskaan9606
    @muskaanmuskaan96062 жыл бұрын

    😍😍😍 thankuuuu sooo...muchhhh......

  • @mrxeeb6977
    @mrxeeb69774 жыл бұрын

    Thanks so ki vajah se hm scl me topic samjha pate h so thank u so much

  • @rakhigautam1316
    @rakhigautam13164 жыл бұрын

    Sar Pratidin Chashma Lagate Rahane se myopia me. Sudhar hota hai kya mera power kam ho jaega

  • @tasneemsayyedsayyed3219
    @tasneemsayyedsayyed32194 жыл бұрын

    Pupil kay hota hai our pupil niche ane say kay hota hai pls batana maire ladke ka pupil niche agaya pls is kr bare mai bataw

  • @suravimohanty2512
    @suravimohanty25124 жыл бұрын

    What do you mean by curvature of lens ?

  • @sabitathakur4805

    @sabitathakur4805

    3 жыл бұрын

    Curved nature of lens

  • @sunitapandey8888
    @sunitapandey88884 жыл бұрын

    Very nice explain sir

  • @ranbirgamer362
    @ranbirgamer3624 жыл бұрын

    Good acha h

  • @gyasuddinfanan5777
    @gyasuddinfanan57774 жыл бұрын

    Sir ,With your clear explanation I can understand anything easily

  • @mhyt3283
    @mhyt32833 жыл бұрын

    Sir make video on farsightedness and near sightedness

  • @varunpradhan7412
    @varunpradhan74123 жыл бұрын

    Bro you teach u very nicely

  • @devendragautam1091
    @devendragautam10914 жыл бұрын

    You are one of the best teacher.I read. Thank you very much

  • @infobasic99
    @infobasic993 жыл бұрын

    Ye vedios dekhne k baad physics ab achi lgne lgi h

  • @meenanirmal7929
    @meenanirmal79293 жыл бұрын

    Thank you sir 😁😁🙏🏻🙏🏻

  • @thephysicslover2804
    @thephysicslover28043 жыл бұрын

    So from from I will start watching TV lot😄😄