$A$ photocell employs the 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.

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