MCQ
The cathode of a photoelectric cell is changed such that the work function changes from $W_1$ to $W_2\left(W_2>W_1\right)$. If the current before and after change are $\mathrm{I}_1$ and $\mathrm{I}_2$, all other conditions remaining unchanged, then (assuming $\mathrm{hn}>\mathrm{W}_2$ )
  • $I_1=I_2$
  • B
    $I_1
  • C
    $I_1>I_2$
  • D
    $I_1

Answer

Correct option: A.
$I_1=I_2$
(a) $I_1=I_2$

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