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The work function of a metal is 1.6 xx 1...

The work function of a metal is `1.6 xx 10^(-19) J`. When the metal surface is illuminated by the light of wavelength `6400 Å`, then the maximum kinetic energy of emitted photo - electrons will be
(Planck's constant `h = 6.4 xx 10^(-34) Js`)

A

`14 xx 10^(-19) J`

B

`2.8 xx 10^(-19) J`

C

`1.4 xx 10^(-19) J`

D

`1.4 xx 10^(-19) eV`

Text Solution

Verified by Experts

The correct Answer is:
C
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