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Keeping voltage on anode of photocell,wa...

Keeping voltage on anode of photocell,wavelength of light is changed periodically.How does current of photocell I and `lambda` change out of the following graphs ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
If threshold wavelength is `lambda_(0)` for `lambdalelambda` photoelectric current is obtained due to photoelectric emission and as `lambda` decrease current increases.
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