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The graph provided represents the variation of photoelectric current with the potential difference applied between the collector and emitter plates and the intensity of the incident light. Which statement is correct based on this graph?
The stopping potential is dependent of the intensity of incident light.
The photoelectric current increases linearly with the potential difference applied between the collector and emitter plates.
The maximum kinetic energy of the emitted photoelectrons is directly proportional to the intensity of incident light.
The photoelectric current reaches a saturation value beyond which it does not increase with an increase in the potential difference applied between the collector and emitter plates.
Answers (1)
The graph represents the variation of photoelectric current with the potential difference applied between the collector and emitter plates and the intensity of the incident light. The graph shows that the photoelectric current initially increases linearly with the potential difference, but eventually reaches a maximum saturation current beyond which it remains constant. This saturation current is independent of the intensity of the incident light. This means that the photoelectric current does not increase with an increase in the potential difference applied between the collector and emitter plates beyond a certain limit. Therefore, option D is correct. Option A is incorrect because the stopping potential is directly proportional to the frequency of the incident light, not the intensity. Option B is incorrect because the photoelectric current reaches a maximum saturation current beyond which it remains constant, and is not directly proportional to the potential difference applied between the collector and emitter plates. Option C is incorrect because the maximum kinetic energy of the emitted photoelectrons is dependent on the frequency of the incident light, not the intensity.
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