1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Wavelength of scattered photon and angle of scattering in the Compton scattering

  1. Dec 3, 2012 #1
    1. The problem statement, all variables and given/known data

    In the Compton scattering, a photon of wavelength λ collides with an electron at rest, and a new photon of wavelength λ' emerges at an angle θ. Find λ' y θ.

    Energy of incident photon Ei = 1 MeV
    Energy of scattered electron Ee = 0.32 MeV

    2. Relevant equations

    E = [itex]\frac{hc}{λ}[/itex]

    λ' - λ = λc(1 - cosθ)

    c being Compton wavelength)

    3. The attempt at a solution

    λ' = [itex]\frac{hc}{E_i - E_e}[/itex] = [itex]\frac{1240 eV · nm}{0.68 MeV}[/itex] = 1.82 pm

    θ = cos-1[itex]\left(\frac{λ - λ'}{λ_c} + 1\right)[/itex] = 40.45°

    Am I right?
     
  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