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The maximum kinetic energy of photoelect...

The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 3 eV fall on it is 4 eV. The stopping potential, in volt, is………………..

A

2

B

4

C

6

D

10

Text Solution

Verified by Experts

The correct Answer is:
B
Stopping potential, `V_(0) = (K_(max))/(e) = (4eV)/(e) = 4V`
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Knowledge Check

  • 4 eV is the energy of the incident photon and the work function is 2 eV. The stopping potential will be

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