Photoelectric EffectMedium

Question

If frequency of incident radiation is above threshold frequency, on applying potential difference, the photoelectric current in photoelectric cell increases with increase in :

Options

A.intensity of incident radiation   
B.wavelength of incident radiation
C.frequency of incident radiation
D.speed of incident radiation

Solution

Intensity is directly propotional to the number of photon per unit area so no of photo elecron also increase. With increase in frequency photoelectric current increases, although saturation current does not change.

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