In a Particular Case of Compton Scattering, a Photon Collides

Multiple Choice

In a particular case of Compton scattering, a photon collides with a free electron and scatters backwards. The wavelength after the collision is exactly double the wavelength before the collision. What is the wavelength of the incident photon?

A) 3.6 × 10^-12 m
B) 4.8 × 10^-12 m
C) 2.4 × 10^-12 m
D) 1.2 × 10^-12 m
E) 6.0 × 10^-12 m