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

If light is a particle, what is wavelength / frequency ?

  1. Aug 14, 2011 #1
    If light is a particle, what is "wavelength"/"frequency"?


    Is the wavelength of a particle simply the wavelength of the psi-function before measurement? Or (/and?) is it an intrinsic property that is "even there in the particle" when you measure the presence of the particle (i.e. reduction), like energy?

    Or is the nature of this question exhibiting a deeper misunderstanding of mine?

    My formal knowledge about QM doesn't extend beyond an introductory course.
  2. jcsd
  3. Aug 14, 2011 #2


    User Avatar

    Re: If light is a particle, what is "wavelength"/"frequency"?

    Yes. Deeper question: what's the wavelength of particle? DeBroigle wave? - that is exactly the same. EM-wave for photon? - counterparts regarding different (QM / wave optics) approaches
    Probably "and" not "or" :devil:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook