Which one of the following statements is true if the intensity of a light beam is increased while its frequency is kept the same?
A)The photons gain higher speeds.
B)The energy of the photons is increased.
C)The number of photons per unit time is increased.
D)The wavelength of the light is increased.

Question

Quizplus · Accepted Answer

Increasing the intensity of a light beam while keeping its frequency constant increases the number of photons per unit time. The energy of individual photons is determined by their frequency (E = hf), not by the intensity of the light beam. Increasing intensity without changing frequency means more photons are being emitted per unit time, but the energy of each photon remains the same.

Which One of the Following Statements Is True If the Intensity