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Stopping Potential vs Frequency

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Question

The graph shows variation of stopping potential $V_{0}$ versus frequency of incident radiation $v$ for two photosensitive metals A and B. Which of the two metals has higher threshold frequency and why?

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Solution

Metal A has higher threshold energy because the minimum frequency required to start photo emission is more in A than that of B.

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Q. The graph shows variation of stopping potential

V_{0}

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