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    sunny101's Avatar
    sunny101 Posts: 1, Reputation: 1
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    #1

    May 20, 2008, 12:02 PM
    Electromagnetic waves
    Which is same for all kind of electromagnetic waves?
    Frequency , speed , energy
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    May 20, 2008, 12:31 PM
    I would say speed, They can have different frequency and energy. Speed would be the same for all.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #3

    May 20, 2008, 02:58 PM
    All of those three things can change.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #4

    May 20, 2008, 03:35 PM
    I would believe Capichun, but if 1 was the answer, I would chose speed.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #5

    May 20, 2008, 03:49 PM
    Yes, the speed of an EM wave is fixed when traveling through a particular medium. The change in speed is not a property of the wave, but of the material.

    You should point out to your teacher that EM waves can move at different speeds if they are in different media, though :)
    Cho's Avatar
    Cho Posts: 85, Reputation: 2
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    #6

    May 23, 2008, 12:52 PM
    Speed of EM waves depend on permitivity & permiability of the medium.And if frequency is constant energy is also constant.But frequency depends on speed which in turn depends on the medium of propagation
    Cho's Avatar
    Cho Posts: 85, Reputation: 2
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    #7

    May 23, 2008, 12:55 PM
    Quote Originally Posted by Stratmando
    I would say speed, They can have different frequency and energy. Speed would be the same for all.

    Speed depends on medium and , frequency and energy depends on speed
    kesavan's Avatar
    kesavan Posts: 118, Reputation: 1
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    #8

    May 24, 2008, 11:57 AM
    In Vacuum, all of them are same speed, but other medium speed different
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