Question Detail
Question
Which determines the number of electrons emitted by a photoelectric material?
Correct Answer
Option A is the correct answer.
Detailed Explanation
In the photoelectric effect, the number of photoelectrons emitted per second is directly proportional to the intensity of the incident light, provided the frequency is above the threshold frequency. Intensity is a measure of the number of photons hitting the surface.
Hint
Recall that the number of emitted electrons depends on the number of incident photons, which is related to the light's intensity.