In a photoelectric effect experiment, the graph of stopping potential $V$ versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased :

Question

In a photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased :

TestHub · Accepted Answer

Einstein's photoelectric equation is given by,

${eV}_{s} = h ν - W_{o}$ , where $W_{o}$ is the work function.

$\Rightarrow V_{s} = \frac{h c}{eλ} - \frac{W_{o}}{e}$ , where $c = ν λ$ .

Intensity does not affect the frequency and work function of a material. Therefore, the graph does not change with increasing intensity.

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