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The cathode of a photoelectric cell is changed such that the work function changes from W1 to W2 W2>W1. If the current before and after change are I1 and I2, all other conditions remaining unchanged, then (assuming hv>W2)

(a) I1= I2               (b) I1I2
(c) I1>I2                (d) I1<I2<2I1