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1.5 mW of 400 nm light is directed at a ...

1.5 mW of 400 nm light is directed at a photoelectric cell. If 0.1% of the incident photons produce photoelectrons, find the current in the cell.

A

`0.36 muA`

B

`0.48 mu A`

C

`0.42 mu A`

D

`0.32 muA`

Text Solution

Verified by Experts

The correct Answer is:
B
(a) `P = (underset(.)(N)hc)/(lambda)` , (b) `underset(.)(n) = (0.1)/(100)underset(.)(N)`, (c) `underset(.)(i) = underset(.)(n)e`
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