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The work function a metel is 2 eV. If a ...

The work function a metel is 2 eV. If a radiation of wavelengh 3000 `A^(@)` is incident on it, the maximum kinetic energy of the emitted photoelectros is (Plank's constant `h = 6.6 "times "10^(-34)` J, velocity of light `c=3" times "10^8 ms//s, 1 eV=1.6 "times "10^(-19)`

A

4.4times`10^(-19)` J

B

5.6 times `10^(-19) J`

C

3.4 times`10^(-19) J`

D

2.5 times `10^(-19) j`

Text Solution

Verified by Experts

`muMg"s"="p"^2/(2M)`
`implies "S"="p"^2/(2mu_kM^2g)`
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