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AP Physics 2
15.5 The Photoelectric Effect
BeginnerMCQGraphicalConceptual19.6k
Stopping potential versus frequency for Metal X and Metal Y.
Stopping potential versus frequency for Metal X and Metal Y.
An experiment is conducted to investigate the photoelectric effect using two different metal surfaces, Metal X and Metal Y. Monochromatic light of varying frequency \(f\) shines on each metal, and the stopping potential \(V_s\) required to reduce the photocurrent to zero is measured. The resulting graph of stopping potential versus frequency for both metals is shown. Which of the following claims correctly compares the work functions of Metal X and Metal Y?

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