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The work function of a material is 5.3 e...

The work function of a material is 5.3 eV and the stopping potential for a radiation incident on this surface is 4.2V. The energy of a quantum of incident radiation is

A

1.1 eV

B

9.5 eV

C

5.3 eV

D

4.2 eV

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The correct Answer is:
B
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