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Mercury violet (lambda = 4558 Å) is fall...

Mercury violet `(lambda = 4558 Å)` is falling on a photosensitive material `(phi = 2.5 eV)`. The speed of the ejected electrons is in `ms^(-1)` , about

A

`3 xx 10^(5)`

B

`2.65 xx 10^(5)`

C

`4 xx 10^(4)`

D

`3.65 xx 10^(7)`

Text Solution

Verified by Experts

The correct Answer is:
B
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