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A light having wavelength 300 nm falls o...

A light having wavelength 300 nm falls on a metal surface work function of metal is 2.54 eV. What is stopping potential ?

A

1.4 V

B

2.59 V

C

1.60 V

D

1.29 V

Text Solution

Verified by Experts

The correct Answer is:
A
`eV_(0) = h upsilon - W_(0) = 2eV - 0.6 eV = 1.4 eV`
`therefore" "V_(0) = (1.4 eV)/(e) = 1.4 V1`
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