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Wavelength times frequency

  1. Feb 28, 2010 #1
    equals speed?

    I only ask as I couldn't find a solid answer online.
     
  2. jcsd
  3. Feb 28, 2010 #2

    Doc Al

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    Last edited by a moderator: Apr 24, 2017
  4. Feb 28, 2010 #3
    Isn't calling C the speed of light in e=mc2 misleading as light is a specific part of the electromagnetic radiation spectrum.

    Shouldn't C be the speed ot the electromagnetic radiation spectrum
     
  5. Feb 28, 2010 #4

    Doc Al

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    Since all forms of electromagnetic radiation have the same speed in a vacuum, calling 'c' the speed of light is OK. Often all wavelengths, not just the visible, are referred to as 'light'.
     
  6. Feb 28, 2010 #5
    Right so then there would also be no objection to calling C the speed of gamma, or speed of infrared?
     
  7. Feb 28, 2010 #6

    Doc Al

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    Sure. No problem. All the same. Just calling it the 'speed of light' is more generic, though.
     
  8. Feb 28, 2010 #7
  9. Feb 28, 2010 #8

    Doc Al

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    Last edited by a moderator: Apr 24, 2017
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