When a monochromatic point source of light is at a distance of 1 m from a photoelectric cell, the cut-off voltage and the saturation current are respectively 0.4 V and 36 mA. If the same source is placed 2 m away from the photoelectric cell, then –
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(a, d)
Number of photons received/area ∝ 
∴ Saturation current becomes 
th
Stopping potential depends on frequency which is unchanged.
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