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Homework Help: Determine the wavelength of the scattered photon

  1. Nov 26, 2015 #1
    1. The problem statement, all variables and given/known data
    In a Compton scattering experiment, a photon is scattered through an angle of 90.0deg, and the electron is scattered through an angle of 18.3deg. Determine the wavelength of the scattered photon

    2. Relevant equation

    3. The attempt at a solution
    I'm confused. I don't know how to go about this question
  2. jcsd
  3. Nov 26, 2015 #2
    This is indeed a bit confusing. I suppose one can assume that the electron was at rest, and that 18.3 degree is the angle between the electron velocity and the continuation of the incoming photon.

    Then apply conservation of energy and of momentum (relativistic).
    Last edited: Nov 26, 2015
  4. Nov 26, 2015 #3

    Mister T

    User Avatar
    Science Advisor
    Gold Member

    Have you looked at the Compton scattering formula? I'd start there.
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