MCQ
The cathode of a photoelectric cell is changed such that the work function changes from $W_1$ to $W_2 (W_2>W_1)$. If the current before and after change are $I_1$ and $I_2,$ all other conditions remaining unchanged, then $($assuming $hn > W_2)$
- ✓$I_1=I_2$
- B$I_1$
- C$I_1>I_2$
- D$I_1$
