Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Gamma rays faster?

  1. May 20, 2006 #1
    Since gamma rays are much more energetic, then shouldn't they travel faster. Gamma rays are light, but since they are faster shouldnt they travel faster than c?
  2. jcsd
  3. May 20, 2006 #2
    The energy if a wave is given by the frequency of the wave, not by it's speed. Gamma waves are more energetic than visable light waves, so they have a higher frequency, and thus a shorter wavelength.

  4. May 21, 2006 #3


    User Avatar
    Science Advisor

    As far as we know, gamma rays also travel at exactly c. There are theories (google "loop quantum gravity") that predict gamma rays to be slightly faster.
  5. May 21, 2006 #4
    There is also DSR or Doubly Special Relativity:

    http://www.physicspost.com/articles.php?articleId=129 [Broken]


    However DSR remains controversial and speculative.
    Last edited by a moderator: May 2, 2017
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook