MCQ
Which figure shows the correct variation of applied potential difference $(V)$ with photoelectric current $(I)$ at two different intensities of light ( $\mathrm{I}_1<$ $\mathrm{I}_2$ ) of same wavelengths :
  • A

  • B


  • D

Answer

Correct option: C.

c
Given lights are of same wavelength.

Hence stopping potential will remain same.

Since $I_2>I_1$, hence saturation current corresponding to $\mathrm{I}_2$ will be greater than that corresponding to $\mathrm{I}_1$.

Hence option $(3)$

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