The number of electrons per second ejected from a metal in the photoelectric effect
A) is proportional to the threshold frequency of the metal.
B) is proportional to the intensity of the incident light.
C) is proportional to the threshold wavelength of the incident light.
D) is proportional to the frequency of the incident light.

Question

Quizplus · Accepted Answer

The number of electrons ejected per second in the photoelectric effect is directly proportional to the intensity of the incident light. Higher intensity means more photons hitting the metal surface per second, which leads to more electrons being ejected. The threshold frequency and wavelength are properties related to the minimum energy required to eject electrons, not the number of electrons ejected. The frequency of the incident light affects the energy of the ejected electrons but not the number of electrons ejected per second.

The Number of Electrons Per Second Ejected from a Metal