A) the barrier voltage at the \[p-n\] junction
B) the intensity of the light falling on the cell
C) the frequency of the light falling on the cell
D) the voltage applied at the \[p-n\] junction
Correct Answer: B
Solution :
In a photoconductive cell, when monochromatic light is incident on the transparent metallic film, a force produced called the photo-electromotive, stimulates the emission of an electric current when photovoltaic action creates a potential difference between two points. The magnitude of this current depends upon the intensity of incident light. Hence, photo-electromotive force produced by monochromatic light is proportional to the intensity of light falling on the cell.
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