Question

Consider the following:
I. A photoelectric process in which all emitted electrons have energy less than hf,wheref is the frequency of the incident light.
II. A photoelectric process in which some emitted electrons have kinetic energy greater than hf.
III. Compton scattering from stationary electrons for which the emitted light has a frequency that is greater than that of the incident light.
IV. Compton scattering from stationary electrons for which the emitted light has a frequency that is less than that of the incident light.
The only possible processes are:
A) I
B) III
C) I and III
D) I and IV
E) II and IV

Answer

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