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When a monochromatic source of light is at a distance of 0.2 m from a photocell, the stopping potential (cut off voltage) and the saturation current are found to be respectively 1 V and 27 mA. If the same source is placed at a distance 0.6 m from the cell, then

A

the stopping potential will be 0.25 V and current will be 27 mA.

B

the stopping potential will be 1 V and the current will be 3 mA

C

the stopping potential will be 1 V and the current will be 9 mA

D

the stopping potential and the currennt will be same as before.

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The correct Answer is:
B
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