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The number of photoelectrons emitted is proportional to the intensity of incident light. Saturation current ∝ intensity.

1. Retarding potential depends on the frequency of incident radiation but is independent of intensity.
2. The number of photoelectrons emitted is proportional to the intensity of incident light.
3. The stopping potential is equal to the maximum kinetic energy.
4. The threshold frequency is the minimum frequency required for photoelectric emission.

Correct answer: The number of photoelectrons emitted is proportional to the intensity of incident light.

Solution

The number of photoelectrons emitted is directly proportional to the intensity of the incident light, as intensity determines the number of photons striking the surface per unit time.

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