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A photoelectric cell is illuminated by a...

A photoelectric cell is illuminated by a point source of light `1 m` away . When the source is shifted to `2 m` then

A

each emitted electron carries one quarter of the initial energy

B

number of electrons emitted is half the initial number

C

each emitted electron carries half the initial energy

D

number of electrons emitted is a quarter of the initial number

Text Solution

Verified by Experts

The correct Answer is:
D
For a point source `I prop 1/r^2`
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