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MHT CET202522 Apr 2025Morning ShiftPhysicsDual Nature of MatterActual

From photoelectric effect experiment, select the correct statement.

Options

  1. APhotoelectric effect can be explained using wave theory of light.
  2. BThe maximum kinetic energy of a photoelectron depends on the intensity of incident light.
  3. CThe stopping potential depends only on the work function of the metal.
  4. DThe saturation current increases as the intensity of incident light increases.

Correct answer

D. The saturation current increases as the intensity of incident light increases.

Step-by-step solution

The photoelectric effect involves electron emission from metals under appropriate light frequency. Analyzing each option: Photoelectric effect can be explained using wave theory of light. This is incorrect, as wave theory fails to explain instantaneous emission, threshold frequency, and kinetic energy independence from intensity. Einstein's photon theory successfully explains these phenomena. The maximum kinetic energy of a photoelectron depends on the intensity of incident light. This is incorrect. Maximum kinetic

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