You perform Compton scattering experiments with X-rays of a fixed wavelength. In one experiment you scatter the X-rays from free electrons. In the second experiment you scatter the X-rays from protons instead. For X-rays scattered under a given angle, the wavelength change
A) will be larger for scattering from protons.
B) will be the same for both cases.
C) will be larger for scattering from electrons.
D) depends on the actual wavelength of the X-rays.

Question

Quizplus · Accepted Answer

The Compton wavelength shift is inversely proportional to the mass of the scattering particle. Since electrons have much less mass than protons, the wavelength change will be larger when scattering from electrons.

You Perform Compton Scattering Experiments with X-Rays of a Fixed