In an experiment to study photoelectric effect the observed variation of stopping potential with frequency of incident radiation is as shown in the figure. The slope and y -intercept are respectively

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Correct answer: A. (h)/(e),-(h v_0)/(e)

The maximum kinetic energy of emitted photoelectrons is given as In an experiment to study photoelectric effect the observed variation of stopping potential with frequency of incident

In an experiment to study photoelectric effect the observed variation of stopping potential with frequency of incident

\begin{array}{ll}\Rightarrow & e V_0=h v-\phi_0 \\ \Rightarrow & V_0=\left(\frac{h}{e}\right) v-\frac{\phi_0}{e}\end{array}

Comparing with

y=m x+c

, we get

\begin{aligned} \quad m & =\frac{h}{e} \text{ and } c=-\frac{\phi_0}{e}=-\frac{h v_0}{e} \\ \therefore \text{ Slope } & =m=\frac{h}{e}\end{aligned}

In an experiment to study photoelectric effect the observed...

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