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 changes are `I_(1)` and `I_(2)`, all other conditions remaining unchanged, then (assuming `(hvgtW_(2))`

Options

A. `I_1 = I_2`
B. `I_1 lt I_2`
C. `I_1 gt I_2`
D. `I_1 lt I_2 lt 2I_1`

Answer

A

Explanation

Since `hv gt W_2`
Photocurrent `prop` Intensity
Since, intensity does not change, hence, photocurrent remain constant. `(l_1 = l_2)` .