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Mashy

  • 2 years ago

Why em waves cannot be deflected by a suitable magnetic or an electric field? My doubt is, something made of oscillating magnetic and electric field cannot be deflected by an external field why so?

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  1. Ishaan94
    • 2 years ago
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    Hmm is bending what you mean by deflection?

  2. Mashy
    • 2 years ago
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    yea yea..

  3. Ishaan94
    • 2 years ago
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    actually bending is possible or at least in my knowledge, do you remember the J.J Thompson experiment? the electron discharge tube one in which he placed two magnets by the tube causing the ray to bend. I am not so sure lemme check my book.

  4. Mashy
    • 2 years ago
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    that was the ray of electrons not em waves!

  5. Mashy
    • 2 years ago
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    and no light is not bended by any external electric or magnetic fields at all!! :-/.. i just can't find a simple explanation!

  6. Ishaan94
    • 2 years ago
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    oh yeah sorry

  7. Ishaan94
    • 2 years ago
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    but hmm what if i have a magnet with me and i expose it to an em wave, wouldn't the magnetic field of the magnet cause change in the magnetic field of em wave which further would cause change in electric field.

  8. Mashy
    • 2 years ago
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    NOO>. nothing of that sort happens.. if that were true, you would be able to deflect light, visible light via magnetic and electric fields..!! but that doesn't happen.. not one bit!

  9. Mashy
    • 2 years ago
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    see its an interesting question.. until james would come and explain us :D!!

  10. Ishaan94
    • 2 years ago
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    and what about refraction, why do you think light bends in denser medium i think maybe because atoms are closely packed together and when light has to go through them it gets effected due to their electromagnetic field... maybe not sure

  11. Mashy
    • 2 years ago
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    no no.. bending of light is PUUREEELLLYYYY due to the fact that the velocity of the light slows down!..

  12. Ishaan94
    • 2 years ago
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    strange none of my ideas work

  13. Ishaan94
    • 2 years ago
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    but this stuff is interesting

  14. Mashy
    • 2 years ago
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    dude you are in second puc, when i was in second puc, i didn't EVEN THINK ABOUT THESE STUFFFFF, you are like WAY WAY WAY ahead of me when i was your age!!

  15. Ishaan94
    • 2 years ago
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    it's in the course this is why i know about it

  16. Ishaan94
    • 2 years ago
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    i mean not this but a little explanation about it

  17. Mashy
    • 2 years ago
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    even i had it in my course.. and i never gave a thought to it :P

  18. Ishaan94
    • 2 years ago
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    thanks, you like physics which counts more and being passionate about it earns you bonus points you will definitely do good if you get in physics

  19. Mashy
    • 2 years ago
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    ok this is what i got from some site "There is no first order interaction between light and an electric or magnetic field IN VACUUM until you achieve such intense fields that the vacuum decays (a nucleus with Z=1/(α) or a magnetic field about 100X as powerful as a magnetar). Also consider the Sharnhorst effect.".. so i guess what that means is we cannot create strong enough fields to deflect them may be! :-/

  20. Ishaan94
    • 2 years ago
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    oh hmm maybe so what happens in processes like polarization if polarization can reduce light's intensity can't something like that help in bending of light?

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