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Question

In photoelectric effect, stopping potential depends upon
  1. intensity of incident light
  2. both (a) and (b).
  3. frequency of incident light
  4. nature of the emitter material

A
frequency of incident light
B
nature of the emitter material
C
intensity of incident light
D
both (a) and (b).
Solution
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The stopping potenial depends on frequency of incident light and nature of the emitter material.for a given frequency of incident light, it is independent of its intensity.

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