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The electric field associated with a lig...

The electric field associated with a light wave is given by `E= E_0 sin [(1.57x 10^7 m^(-1)(x-ct)].` Find the stopping potential when this light is used in an experiment on photoelectric affect with a metal having work - function 1.9 eV.

A

`1.2V`

B

`1.5V`

C

`1.75V`

D

`1.9V`

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A
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