A photocell employs photoelectric effect to convert (a) change in the frequency of light into a change in the electric current (b) change in the frequency of light into a change in electric voltage (c) change in the intensity of illumination into a change in photoelectric current (d) change in the intensity of illumination into a change in the work function of the photocathode.

Answer: (c). In a photocell the frequency is fixed (above threshold) and the photocurrent ∝ intensity. So a change in illumination appears as a change in current; the work function is a fixed property of the cathode. So the answer is (c).

A photocell employs photoelectric effect to convert | NEET 2006 (AIPMT)

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Photoelectric Experiment: Intensity, Stopping Potential & Graphs

A photocell employs photoelectric effect to convert

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Answer: (c)

In a photocell the frequency is fixed (above threshold) and the photocurrent $\propto$ intensity.
So a change in illumination appears as a change in current; the work function is a fixed property of the cathode.
So the answer is (c).

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Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from NEET 2006 (AIPMT)

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