1. Which of the following about the photoelectric effect is:

A) The rate of emission of photoelectrons from a metallic surface is proportional to the intensity of incident light

B) if the frequency of incident light is less than a specific minimum, electrons will be ejected from the surface

C) the maximum Kinetic energy of emitted photoelectrons is proportional to the frequency of incident light but does not depend on the intensity of incident light.

D) All of the above statements are true