alleryIn the photoelectric effect, the *stopping potential* $V_0$ varies with the frequency of incident light as
Aquadratic
Blinear, with slope $h/e$
Cinversely proportional
Dlinear, with slope $\phi/e$
Answer & Solution
Correct answer: B. linear, with slope $h/e$
$eV_0 = h\nu - \phi$.
So $V_0 = (h/e)\nu - \phi/e$ is a straight line in $V_0$ vs $\nu$, slope $h/e$ — the same for all metals.
The y-intercept depends on $\phi$, distinguishing the metals.
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