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The threshold wavelength for the ejectio...

The threshold wavelength for the ejection of electrons from the metal X is 330 nm. The work function for the photoelectric emission for metal X is `(h = 66 xx 10^(-34) Js)`

A

`1.2xx10^(-18) J`

B

`6.0xx10^(-19) J`

C

`1.2xx10^(-20) J`

D

`6.0xx10^(-22) J`

Text Solution

Verified by Experts

The correct Answer is:
B
Work function is given as =`hv^@ =(hc)/lambda^@`
or Work function =`(6.62xx10^(-34)xx3xx10^8)/(330xx10^(-9))`
`=6xx10^(-19) J`
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