The cathode of a photoelectric cell is changed such that the work function changes from `(W_(1) to W_(2) (W_(2) gt W_(1))`. If the current before and after change are `I_(1)` and `I_(2)`, all other conditions remaining unchanged , then (assuming `hv gt W_(2)`)
A
` l_(1) = l_(2)`
B
`l_(1) lt l_(2)`
C
`l_(1) gt l_(2)`
D
`l_(1) lt l_(2) lt 2l_(2)`
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The correct Answer is:
A
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