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A photon energy 3.4 eV is incident on a ...

A photon energy `3.4 eV` is incident on a metal having work function `2 eV`. The maximum `K.E.` of photoelectrons is equal to

A

`1.4 eV`

B

`1.7 eV`

C

`5.4 eV`

D

`6.8 eV`

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(max) = (E - W_(0)) = (3.4 - 2) eV = 1.4 eV`
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