NEET Physics Einstein's Photoelectric Equation MCQ Question
From the photoelectric effect experiment, following observations are made. Identify which of these are correct
The stopping potential depends only on the work function of the metal.
The saturation current increases as the intensity of incident light increases.
The maximum kinetic energy of a photo electron depends on the intensity of the incident light.
Photoelectric effect can be explained using wave theory of light.
Correct Answer
Detailed Explanation
The correct answer is (3) B only. The stopping potential depends on the frequency of the incident light, not just the work function. The saturation current is indeed proportional to the intensity of the incident light. The maximum kinetic energy of photoelectrons depends on the frequency of the incident light, not its intensity. The photoelectric effect cannot be explained using wave theory, as it requires the concept of photons.
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