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In a photoelectric emission, electrons a...

In a photoelectric emission, electrons are ejected from metals X and Y by light of frequency f. The potential difference V required to stop the electrons is measured for various frequencies.. If Y has a greater work function than X, which graph illustrates the expected results?

A

B

C

D

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Verified by Experts

The correct Answer is:
A
V versus F has a constant slope of `(h)/(e)`, so both lines must be parallel.
Also, work function is equal to intercept on f-axis
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