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The potential difference that must be ap...

The potential difference that must be applied to stop the fastest photo electrons emitted by a nickel surface, having work function 5.01 eV, when ultraviolet light of 200 nm falls on it, must be –

A

1.2 V

B

2.4 V

C

`-1.2 V `

D

`-2.4 ` V

Text Solution

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The correct Answer is:
A
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