Solve the all parts of given question:
Question: X-ray photons of wavelength 0.02600 nm are incident on a target and the Compton-scattered photons are observed at 90°. (Assume that the photons' incident line of travel is in the positive x direction. Use the exact values you enter in previous answer(s) to make later calculation(s).)
Part A: What is the wavelength of the scattered photons?
Part B: What is the momentum of the incident photons?
Part C: What is the momentum of the scattered photons?
Part D: What is the kinetic energy of the scattered electrons?
Part E: What is the momentum (magnitude and direction) of the scattered electrons?
Can someone please explain what the heck is going on?