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When a monochromatic point source of lig...

When a monochromatic point source of light is at a distance of `0.2` m from a photoelectric cell, the cut off voltage and the saturation current are respectively `0.6V` and `18.0 mA` if the same source is placed `0.6 m` away from the photoelectric cell , then

A

the stopping potential will be 0.2 V

B

the stopping potential will be 0.6 V

C

the saturation current will be 4 mA

D

both (a) and (c)

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The correct Answer is:
B
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