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The potential difference that must be ap...

The potential difference that must be applied to stop the fastest photoelectrons 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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