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The current in a photocell can be just r...

The current in a photocell can be just reduced to zero by a potential of 2.5 V. The maximum kinetic energy of the emitted electrons is

A

2 J

B

2.5 eV

C

4 eV

D

`4xx10^(-19)`J

Text Solution

Verified by Experts

The correct Answer is:
B
Maximum K.E.`=eV_(s)=e xx 2.5=2.5 eV`
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