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A point source causes photoelectric effe...

A point source causes photoelectric effect from a small metal plate. Which of the following curves may represent the saturation photocurrent as a function of the distance between the source and the metal?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
`Iprop 1/r^(2)`.Saturation photo current is propotional to intensity of light which is inversely propotional to square of the distance from the source. i.e. `I prop 1/r^(2)`
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