physics

Assuming that the equation
Ephoton, final =
Ephoton, initial/1 + Ephoton, initial/mec2
(1 − cos θ)
can be approximately applied at all scattering angles θ, what is the minimum energy of a scattered X-ray photon if the incident X-ray energy is 76 keV? What is the largest possible energy of a scattered X-ray emitted at a scattering angle of 90°?
(a) What is the minimum energy of a scattered X-ray photon if the incident X-ray energy is 76 keV?
b) What is the largest possible energy of a scattered X-ray emitted at a scattering angle of 90°?

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