The photoelectric effect occurs only when the incident light has more than a certain minimum
A) frequency.
B) wavelength.
C) speed.
D) charge.

Question

Quizplus · Accepted Answer

The photoelectric effect can occur only when the incident light exceeds the threshold frequency. This threshold frequency is related to the energy required to remove an electron from a metal surface, known as the work function. Only photons with sufficient energy, i.e. frequency greater than the threshold frequency, can cause electrons to be emitted in the photoelectric effect.

The Photoelectric Effect Occurs Only When the Incident Light Has