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Work function of a metal is 3.0 eV. It i...

Work function of a metal is 3.0 eV. It is illuminated by a light of wavelength `3xx10^(-7)` m. Calculate the maximum energy of the electron.

A

0.75V

B

1.75 V

C

2.5 V

D

3.75 V

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The correct Answer is:
B
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