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1. |
In Compton scattering, if the incident photon has a wavelength of 0.2 nm and Φ = 90°, the angle at which recoil electron appears is ___________ |
A. | 30.12° |
B. | 38.46° |
C. | 44.57° |
D. | 53.12° |
Answer» D. 53.12° | |