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The stopping potential as a function of ...

The stopping potential as a function of the frequency of the incident radiation is plotted for two different photoelectric surfaces `A` and `B` . The graphs show that work function of `A` is

A

greater than that of B

B

smaller than that of B

C

same as that of B

D

such that no comparison can be done from given graphs

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The correct Answer is:
B
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