The Physics of Gravitational Lens

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  • Опубліковано 28 вер 2024
  • Gravitational Lensing is an interesting phenomenon that takes place due to the bending of light rays from a distant source due to massive galaxies and galactic clusters. Such galactic clusters acts as a lens, distorting, magnifying, various background objects as observed from Earth.
    In this video I talk about the General theory of relativity, Gravitational lens, Einstein rings, Einstein cross and various applications in astronomy and astrophysics because of gravitational lensing.
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КОМЕНТАРІ • 112

  • @nehaseth2793
    @nehaseth2793 3 роки тому +23

    Great and Informative Video ( Not seen completely yet but I know it will be) And I request you to start a series on an introduction To Quantum Mechanics,

  • @debjit1375
    @debjit1375 3 роки тому +2

    This channel needs people's attention

  • @alycatpublishing1164
    @alycatpublishing1164 5 місяців тому

    I watched videos about the Eddington experiment which led me to the term "gravitational lensing" which led me here. After learning about non-Euclidian geometry and how that applies here everything finally clicked. I could not understand why the image of the star was displaced outward during the eclipse rather than inward as our sun's gravity would suggest. This video explained why beautifully.

  • @Y.kyadav65
    @Y.kyadav65 Рік тому +1

    Thank you so much sir... This is now important as gravitational lensing is done by Black hole 🕳️ which is identified by this technique

  • @RahulYadav-uy3yn
    @RahulYadav-uy3yn 3 роки тому +1

    Great Explanation With Top notch animations🖤

  • @lakshthaker6379
    @lakshthaker6379 3 роки тому

    please make a series on general theory of relativity and quantum mechanics . you are one of the greatest teachers on youtube . thus you can make these complicated topics very easy

  • @debjit1375
    @debjit1375 3 роки тому

    Sir your way of explanation is so awesome!!

  • @CodewizardSumit
    @CodewizardSumit 3 роки тому +1

    Dear sir,
    We love your all videos because you teach that topics which we need the most for the understanding of modern physics ❣️
    I've been searching for 2 year like this and I found on your channel ❣️
    Everything is okay but the understanding of physics come into the mind in our own language..if you can teach us in Hinglish, it would be great 👍😊

  • @autonomousmegainstinctvege4518
    @autonomousmegainstinctvege4518 3 роки тому +3

    Actually although i am a great lover of relativistic theories, i prefer more the theories of quàntum mechanics although both work perfectly in their own places, so it's my humble request to make the next video on one of the most greatest paradoxes of quàntum mechanics raised by Albert Einstein, Boris Podolsky and Nathan Rosen in 1935

  • @dryolymatics007
    @dryolymatics007 3 роки тому

    Yeah i have no words ,,,, just to say you are the one of the best teachers i have ever met in life ,,,, thank you for your videos they really helping a lot

  • @HighEnergyScientist
    @HighEnergyScientist 3 роки тому +1

    Explain full equations of general theory of relativity

  • @aranichowdhury7698
    @aranichowdhury7698 3 роки тому

    Worthy 11:42 mins... Thank you very much for the video...

  • @satyabratabiswas7772
    @satyabratabiswas7772 3 роки тому

    Oh woww... thanks a lot sir ...I learnt something new and very interesting

  • @wannaberudra
    @wannaberudra 3 роки тому +1

    Sir your content is amazing... Can you make a video on string theory or the m theory? Would be a great help

  • @shanthalinghiremath6070
    @shanthalinghiremath6070 3 роки тому +1

    PLZZ DO SERIES ON HISTORY OF PHYSICS

  • @debasishdas6229
    @debasishdas6229 2 роки тому

    Awesome discussion Sir ....you are like a motivation to us.

  • @sahilkaushik2208
    @sahilkaushik2208 2 роки тому

    Great and helpful lecture

  • @laghumavarapuganesh3443
    @laghumavarapuganesh3443 2 роки тому

    U really great sir . Excellent explanation

  • @harry-ho9ti
    @harry-ho9ti 3 роки тому

    Yes sir pls deliver a series of lecture on quantum mechanics🙏🙏

  • @physics-theworkingofeveryt6086
    @physics-theworkingofeveryt6086 3 роки тому +1

    Sir can you do your next video on general relativity please sie 🙏🙏🥺🙏

  • @MohitKumar-kd6ec
    @MohitKumar-kd6ec 3 роки тому

    Sir please make a video on solid, liquid and gas detector for charged,uncharged and also for zero rest mass particles

  • @pinakisingha2512
    @pinakisingha2512 3 роки тому

    Sir please a video on Quantum conciousness or Quantum mind

  • @durew
    @durew Рік тому

    Well done!

  • @gndeka1188
    @gndeka1188 3 роки тому

    Series on GR would be appreciated

  • @ಮಂದಾರ್ತಿಅಮ್ಮನಮಹಿಮೆ

    Sir please can you give us a class about gravitational red and blue shifts.

  • @soumyakantidas1066
    @soumyakantidas1066 3 роки тому

    Sir want a video on LS-JJ coupling..

  • @kashifnawaz9127
    @kashifnawaz9127 2 роки тому

    Sir string theory pe aik video upload kr dijye....

  • @sidhantkumarpanda
    @sidhantkumarpanda 3 роки тому

    As we can see that in gravitational lensing the light rays tend to bend near massive objects and show a converging effect. If somehow we discover or able to create negative mass then will the gravitational lensing create some sort of diverging effects. I hope you understand my question.

  • @SymphonyKol_androidLover
    @SymphonyKol_androidLover 3 роки тому

    Smooth as butter bro 👌🏼👌🏼👌🏼❤️

  • @vishwendrakumar7715
    @vishwendrakumar7715 3 роки тому

    Thank you sir

  • @physics-theworkingofeveryt6086
    @physics-theworkingofeveryt6086 3 роки тому +1

    Sir can you make your next video on shodinger's equations

  • @jauhueitang6879
    @jauhueitang6879 2 роки тому

    Gravitational field could cause gases and plasma around a massive object o bend the due to refraction effects of dielectric media as well as by Einstein’s general relativity theory.

  • @nitishkaushik4299
    @nitishkaushik4299 3 роки тому

    Amazing

  • @Anusripd09
    @Anusripd09 3 роки тому

    Thnks sir

  • @samridhbajpai4295
    @samridhbajpai4295 3 роки тому

    is there any course for tifr or jest exam

  • @physics-theworkingofeveryt6086
    @physics-theworkingofeveryt6086 3 роки тому +1

    Sir can you make video on maxwell's equation please sir

    • @physics-theworkingofeveryt6086
      @physics-theworkingofeveryt6086 3 роки тому +1

      Sir please make video on either general relativity or quantum mechanics shodinger's equations or maxwell's equation

    • @physics-theworkingofeveryt6086
      @physics-theworkingofeveryt6086 3 роки тому

      Please sir

    • @physics-theworkingofeveryt6086
      @physics-theworkingofeveryt6086 3 роки тому

      They are very important topics sir right ?

    • @physics-theworkingofeveryt6086
      @physics-theworkingofeveryt6086 3 роки тому

      Please sir !

    • @nehaseth2793
      @nehaseth2793 3 роки тому

      @@physics-theworkingofeveryt6086 don't be so impatient OK🙄? It takes a lot hard work to explain the topics especially the topics we are Requesting! Sir has to Explain it and record it then do the editing and animation a bit, and a lot of things, and I guess he is not only a UA-cam educator but also a professor of Physics at Hans Raj University and also has a coaching institute Elevate Classes so be a bit patient, Sabr Ka phal meetha hota hai 🙂

  • @pushkarshendre4274
    @pushkarshendre4274 3 роки тому

    Kindly make video about bigbang

  • @anaghaanilkumar5879
    @anaghaanilkumar5879 3 роки тому +12

    The way sir you are explaining! It feels like studying through meditative state! Just in awe, in how you are teaching physics!
    🤗

  • @amoghkrishnan9178
    @amoghkrishnan9178 3 роки тому +3

    Thank you so much

  • @KunwarUpvan
    @KunwarUpvan 3 роки тому +2

    Thank you so much for explaining in such a simple way ... Wanna more vdos on kuch interesting topics 😊 ✨🤘

  • @usamamedi7893
    @usamamedi7893 3 роки тому +1

    Hy sir as I requested you earlier as well can you do your next video on large hadron collider??

  • @deeptayanmishra760
    @deeptayanmishra760 3 роки тому +1

    Hello sir, please make video on high energy physics 🙏🙏🙏🙏

  • @sourinrajchakraborty7708
    @sourinrajchakraborty7708 3 роки тому +1

    I want Sir Feynman Lectures as you told before.

  • @MASTER-wb3pc
    @MASTER-wb3pc 3 роки тому +2

    I have seen ur almost all videos till now all of them are so interesting love these contents from the core of my heart ❤️ I wish to learn experimental physics by u sir for degree level

  • @suvashshrestha1731
    @suvashshrestha1731 2 роки тому +1

    For the love of physics 💖

  • @armalify
    @armalify 3 роки тому +1

    Many many thanks.
    Very interesting.
    May I suggest to you to address the concept of tensors. I’m very sure that only one video or two from you would be more informative and fruitful than tens of books that I read before . Please , make that video.

  • @sudhakarreddy1453
    @sudhakarreddy1453 3 роки тому +1

    The way you are explaining complex theories of physics is amazing, Sir
    I think you can teach us all on the most complex of theories of physics, the quantum mechanics
    👍👍

  • @henrykashyap8913
    @henrykashyap8913 Рік тому

    I think from this video ,just my opinion... solar system is itself a medium (vacuum) but still a medium where the gravitational lense factor gets affected when light passes through massive object... The point here I'm trying to make is solar system is just another medium projected in 3-D. The breakthrough to reach 4-D medium is yet to be known.... Physics is great.. Good vid anyway...

  • @alexanderhugestrand
    @alexanderhugestrand 2 роки тому

    Question... People seem to be convinced that gravitational lensing is a real effect, but no one has been able to explain how we can be so certain. Can you?
    Why I'm asking is because there is one pretty obvious alternative explanation for those "Einstein rings" that we see, and no one has told me why I should believe in one explanation over the other. I've only been told that Einstein is right. Not why. That alternative explanation is that space is filled with charged gas, i.e. plasma, and that the bending can be due to refraction. There are people like dr Edward Dowdye (laughed at by those convinced of gravitational lensing) claiming that Einstein's evidence for GR - the bending of light around the sun - can only be seen when the light passes through the sun's atmosphere.

  • @Rulebasedworldorder
    @Rulebasedworldorder 2 роки тому

    Sir agar aap ke pass time ho to general theory of relativity course krwa disiye na or sir video bde bnawo na bde in sence ki classes lelijiye sir if possible thanks 🙏🇮🇳🙏

  • @frankdimeglio8216
    @frankdimeglio8216 2 роки тому

    Energy density equals inertia/inertial resistance multiplied times acceleration, thereby deriving F=ma AND E=mc² on balance.
    By Frank DiMeglio

  • @englishforfunandcompetitio248

    Need a full length lecture on GL.....its mathematics and practical lab techniques. So....a request for.

  • @priyankkumar4709
    @priyankkumar4709 3 роки тому

    Bhaiya ye quarks kya hota h ....I know it's smaller than sub atomic particles but don't understand exactly the concept behind that.....

  • @padmanavapadhee3064
    @padmanavapadhee3064 Рік тому

    Thanks sir for such informative videos...
    Can you please explain about dark matter in detail ???

  • @KruthikaSreenivasan_
    @KruthikaSreenivasan_ Рік тому

    Sir can you tell me in what wavelengths is lenses galaxies observed?

  • @srinivasanp.b9914
    @srinivasanp.b9914 3 роки тому

    Nice video but you could have been more technical. This is too simplistic.

  • @craftingwithriya.
    @craftingwithriya. 4 місяці тому

    Very helpful video!!! :)

  • @ashrafulislam1894
    @ashrafulislam1894 Рік тому

    A video on the holographic principle would be appreciated.

  • @p3h1x33
    @p3h1x33 3 роки тому

    Can you make a video on higgs boson particles.

  • @chandrakalachauhan470
    @chandrakalachauhan470 2 роки тому

    Awesome, your explanation with 😊

  • @GrabKnowledge24
    @GrabKnowledge24 3 роки тому

    Sir can you teach bilingual.

  • @叶枫-p5p
    @叶枫-p5p 3 роки тому

    Respect from a Chinese astronomer

  • @RahulKumar-xp6mc
    @RahulKumar-xp6mc 3 роки тому

    Beautiful explanation ❤❤❤

  • @aleferibeiro4717
    @aleferibeiro4717 3 роки тому

    Amazing!! Thank you

  • @autonomousmegainstinctvege4518
    @autonomousmegainstinctvege4518 3 роки тому

    I mean the EPR PARADOX

  • @shivam-wo1zv
    @shivam-wo1zv 3 роки тому

    Informative video

  • @kamalkrishnan7828
    @kamalkrishnan7828 Рік тому

    Very nice❤️🙏

  • @sujalrajput1811
    @sujalrajput1811 2 роки тому

    Thank you sir

  • @physicsiseverything1155
    @physicsiseverything1155 3 роки тому +1

    4th view

  • @pragunbhutani3469
    @pragunbhutani3469 3 роки тому +1

    amazing

  • @murshid1061
    @murshid1061 3 роки тому

    Could you mention your gadgets and editing software
    Your explanations are crystal clear thank you

  • @alokmishra6638
    @alokmishra6638 3 роки тому

    Sir please recommend some good books for physics of mechanics Optics thermodynamics Nuclear and particlecular physics Electricity and magnetism..please sir..🙏🙏🙂

  • @priyabratadash381
    @priyabratadash381 3 роки тому

    Good informative video.
    Sometimes when light come across extremely massive objects like Blackholes, it experiences a strong twist around it and allows the observer to see things happened in the past.

  • @rajashanmugapriyagopal723
    @rajashanmugapriyagopal723 3 роки тому

    Awesome explanation sir. Thank you so much sir😎😎 i learnt more from ur teaching. Please continue this as an astronomy or askphysics series. It will be more useful to all.✌✌

  • @Artistomaniacshorts
    @Artistomaniacshorts 3 роки тому

    Few days before I heard a news "Light coming behind the black hole" It gives proof for general relativity.what an Extraordinary theory😍

  • @monalyadav3306
    @monalyadav3306 3 роки тому

    Thanku so much sir for this interesting information ...it would be very interesting to know about dark matter too...thanks sir😍🥰

  • @shubhamnadda
    @shubhamnadda 3 роки тому

    Sir make a video on Baryogenensis(Baryon Asymmetry) and explain the physics of antimatter universe also explain time travel.

  • @jeewekanayake7133
    @jeewekanayake7133 3 роки тому

    I have thought about those things couple years ago when I am studying lenses in school...
    So chears to me... 😂🦅🦅

  • @Vik470
    @Vik470 2 роки тому

    Fantastic explanation 👏 👌
    I was searching for it to make sense of the new James Webb images.
    Thank you so much

  • @subhajitshil2606
    @subhajitshil2606 3 роки тому

    Sir electrostatics ka multipole expansion & boundary value problems karwa do pls 🙏🏻

  • @ekalavyain1131
    @ekalavyain1131 3 роки тому

    O my god, what a beautiful explanation with in short time.

  • @fountainofacumen1973
    @fountainofacumen1973 3 роки тому

    Sir Would you please do a video on the topic : " Hidden variable theory " And about the Time crystals?

  • @voyages_by_meraj
    @voyages_by_meraj 3 роки тому

    Great video sir❤️❤️❤️ Best Physics channel, much needed man, 😍

  • @ramanshushukla274
    @ramanshushukla274 3 роки тому

    Thanks sir...as always... awesome ❣️

  • @bottlecalifornia2546
    @bottlecalifornia2546 3 роки тому

    Nice animations sir, very informative.

  • @anshchopra4495
    @anshchopra4495 3 роки тому

    Great video! Just a small question though. I'm not even sure if this question actually makes sense or not. But, the bending of light happens because of which nature of light? Particle or wave?

  • @prayanshshrivastava
    @prayanshshrivastava 3 роки тому

    You are great Sir 🙏🏻🙏🏻❤

  • @priyanshushukla4658
    @priyanshushukla4658 3 роки тому

    It was amazing sir.🌟🌟🌟

  • @karanrai6262
    @karanrai6262 3 роки тому

    Big fan sir

  • @asadmalik6701
    @asadmalik6701 3 роки тому +1

    As a physicist your videos always inspired me a lot ... Lots of respect from Pakistan ❤️❤️❤️

  • @bradley772
    @bradley772 8 місяців тому

    Americans say
    kwA-zar.
    Just sayin'.
    *
    It's how I've always said it.
    *
    Thanks for the videos.

  • @korkee1111
    @korkee1111 5 місяців тому

    Why always 4? 8:09