Consider the Following: I

Multiple Choice

Consider the following: I.A photoelectric process in which all emitted electrons have energy less than hf, where f 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