In a $PN$ junction photocell,the value of the photo-electromotive force produced by monochromatic light is proportional to

  • A
    The voltage applied at the $PN$ junction
  • B
    The barrier voltage at the $PN$ junction
  • C
    The intensity of the light falling on the cell
  • D
    The frequency of the light falling on the cell

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Which of the following will $NOT$ be observed when a multimeter (operating in resistance measuring mode) probes connected across a component are reversed?

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Reason: In reverse bias condition,current is small but it is more sensitive to changes in intensity of incident light.

What kind of diode is used as a photo detector?

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The following graph represents:

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