Wavelength of Photons After Compton Scattering of X-Rays

[Kd Hashim]

1. X-Rays of wavelength of 0.065nm undergo Compton scattering from free electrons in carbon. What is the wavelength of the photons scattered at a 90 degrees relative to the incident beam?




λ'-λ = (h/mc)(1-cosθ) is the equation I know, but I would really appreciate an explanation of some sort for what each symbol stands for, and and different forms of this question

 

[janhaa]

λ' : incident wavelength
h: Planck constant
m: mass
c: speed of light
θ: scattering angle