Question

In the experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, then ______.

Options

• photocurrent decreases nonlinearly with intensity

• photocurrent decreases linearly with intensity

• photocurrent remains same

• photocurrent increases linearly with intensity

Answer 1

In the experimental set up for studying photoelectric effect, if keeping the frequency of the incident radiation and the accelerating potential fixed, the intensity of light is varied, then photocurrent increases linearly with intensity.

Explanation:

The number of photons incident increases as the intensity increases. When a result, as the intensity of the photo increases, more electrons are emitted from the metal, and the photo current increases.