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

De-Broglie equation proof

  1. Aug 15, 2011 #1
    de Broglie's eqn. proof goes this way:---

    E = m*c2
    E = h*c/L (L - Wavelength)

    the they are equated -

    => L=h/(m*c)

    But in E=m*c^2, m is the mass lost by some body to give energy E not mass of photon,
    then why do we consider m mass of photon ??
    By considering that we find equivalent eqn.--

    for any mass m.
    Isn't that wrong??
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted