Question

A polychromatic light is used in an experiment on photoelectric effect. The stopping potential 

A

Is related to the mean wavelength

B

Is related to the longest wavelength

C

Is related to the shortest wavelength

D

Is not related to the wavelength.

Medium
Solution
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Correct option is C)

The stopping potential (Vs) in photoelectric effect related with the incident light frequency by the following equation:
where is the work function of the material. So the stopping potential is related to the shortest wavelength or longest frequency.
So, the answer is option (C).

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