Gamma rays emitted by radioactive nuclei also exhibit measurable Compton scattering. Suppose a 0.511-MeV photon from a positron-electron annihilation scatters at 110 degree from a free elctron. a. What is the energies of the scatteted photon and the recoiling electron? b. Relative to the intial direction of the 0.511-MeV photon, what is the direction of the recoiling electron's velocity vector?

Gamma rays emitted by radioactive nuclei also exhibit measurable Compton scattering. Suppose a 0.511-MeV photon from a positron-electron annihilation scatters at 110 degree from a free elctron. a. What is the energies of the scatteted photon and the recoiling electron? b. Relative to the intial direction of the 0.511-MeV photon, what is the direction of the recoiling electron's velocity vector?

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