Question

In photoelectric effect, the slope of the straight line graph between stopping potential and frequency of the incident light gives the ratio of Planck's constant to

A

Charge of electron

B

Work function

C

Photoelectric current

D

K.E. of electron

Medium
Solution
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Correct option is A)


at stopping potential K.EeV


The slope of graph b/w stopping potential and frequency is , where e is charge of  electron.

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