Physics-Photoelectric Effect

NEET Physics Photoelectric Effect MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Which of the following combinations accurately describes the characteristics of the photoelectric effect?

A

The stopping potential depends on the frequency of incident light and is independent of intensity.

B

Electrons are emitted from a metal surface regardless of the light's frequency.

C

The photoelectric current increases with the intensity of the incident light and is affected by the type of material.

D

Photoelectrons are emitted only when the light frequency is below the threshold frequency of the metal.

Correct Answer

Option A

Detailed Explanation

The stopping potential is indeed dependent on the frequency of incident light and is independent of its intensity, as mentioned in the NCERT context. The photoelectric current does depend on the intensity of light and the nature of the material, while photoemission does not occur below the threshold frequency.

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