A photocell employs photoelectric effect to convert:

A photocell employs photoelectric effect to convert:
  1. change in the frequency of light into a change in the electric current
  2. change in the frequency of light into a change in electric voltage
  3. change in the intensity of illumination into a change in photoelectric current
  4. change in the intensity of illumination into a change in the work function of the photocathode

Solution

Photocell employs photoelectric effect to convert change in the intensity of illumination into a charge in photoelectric current.

Asked in: NEET 2006

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