A photon of wavelength is scattered from a free electron initially at rest

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

A photon of wavelength

0.070\,\text{nm}

is scattered from a free electron initially at rest. After the collision its wavelength is measured to be

0.072\,\text{nm}

. Given that the electron Compton wavelength is

2.43\,\text{pm}

, determine the scattering angle of the photon (in degrees).