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Rest frame of a photon

  1. Jan 26, 2011 #1

    D H

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    I've read that in relativity the concept of the rest frame of a photon doesn't make sense. Why is that?

    A rest frame of some object is a reference frame in which the object's velocity is zero. One of the key axioms of special relativity is that light moves at c in all reference frames. The rest frame of a photon would require the photon to be at rest (velocity=0) and moving at c (velocity=299792458 m/s). That of course is contradictory. In other words, the concept doesn't make sense.

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    D H
    Last edited: Dec 19, 2011
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