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10^-3 W of 5000A light is directed on a ...

`10^-3` W of `5000A` light is directed on a photoelectric cell. If the current in the cell is `0.16muA`, the percentage of incident photons which produce photoelectrons, is

A

`0.4%`

B

`.04%`

C

`20%`

D

`10%`

Text Solution

Verified by Experts

The correct Answer is:
B
(a) `P= (overset(.)(N)hc)/(lambda)` (b) `i=overset(.)(n) e` (c) `%=overset(.)(n)/(overset(.)(N))xx100%`
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