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JEE Main 2023 (6 Apr, Shift 2) · Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from JEE Main 2023 (6 Apr, Shift 2)

Q43JEE Main 2023 · 6 APR · SHIFT 2Easy

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

The work functions of Aluminium and Gold are $4.1\text{ eV}$ and $5.1\text{ eV}$ respectively. The ratio of the slope of the stopping potential versus frequency plot for Gold to that of Aluminium is

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Answer: (c)

$V_0 = \frac{h}{e}\nu - \frac{\phi}{e}$ , so slope $= h/e$ for every metal.
The work function only shifts the line, it does not change the slope.
Ratio of slopes $= 1$ .
So the answer is (c) 1.

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