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MHT CET 2026 (13 May, Shift 2) · Photoelectric Experiment: Intensity, Stopping Potential & Graphs

Photoelectric Experiment: Intensity, Stopping Potential & Graphs question from MHT CET 2026 (13 May, Shift 2)

Q3MHT CET 2026 · 13 MAY · SHIFT 2Easy

Photoelectric Experiment: Intensity, Stopping Potential & Graphs

A point source of light is used in a photoelectric effect. If the source is moved farther from the emitting metal, then the stopping potential

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Answer: (c)

Moving a point source away reduces intensity ( $I \propto 1/r^2$ ) but not frequency.
$eV_0 = h\nu - \phi$ does not depend on intensity.
So the answer is (c) will remain constant.

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