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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[(1.57xx10^(7)m^(-1))(ct-x)]`. Find the stopping potential when this light is used in an experiment on a photoelectric effect with the emitter having work function 2.1eV. `h=6.62xx10^(-34)Js`.

A

0.6 eV

B

1.2 eV

C

1.8 eV

D

2. 4 eV

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The correct Answer is:
B
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