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Solution


Q.

From the photoelectric effect experiment, following observations are made. Identify “which of these are correct.”                 [2023]

A. The stopping potential depends only on the work function of the metal.
B. The saturation current increases as the intensity of incident light increases.
C. The maximum kinetic energy of a photoelectron depends on the intensity of the incident light.
D. Photoelectric effect can be explained using wave theory of light.

Choose the correct answer from the options given below:
1 A, B, D only  
2 B only  
3 A, C, D only  
4 B, C only  

Ans.

(2)

(A) Stopping potential depends on both frequency of light and work function.

(B) Saturation current ∝ intensity of light

(C) Maximum KE depends on frequency

(D) Photoelectric effect is explained using particle theory.