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A photo-cell is illuminated by a source ...

A photo-cell is illuminated by a source of light, which is placed at a distance d from the cell. If the distance become d/2, then number of electrons emited per second will be : -

A

Moves with one-fourth energy as that of the initial energy

B

Moves with one-fourth of momentum as that of the initial momentum

C

Will be half in number

D

Will be one-fourth in number

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