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Electric field associated with a light w...

Electric field associated with a light wave is given `E= E_(0) sin [1.57 xx10^(15)t +6.28 xx10^(15) t]` V/m. If this light incident on a surface of work function 2.0 eV the stopping potential will be -

A

`23.6`

B

5 V

C

`2.1V`

D

25 V

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The correct Answer is:
C
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