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PhysicsModern PhysicsPhotoelectric effectMedium2 minQB
PhysicsMediumsingle choice

In a photoelectric experiment, electrons are ejected from metals X and Y by light of intensity and frequency . The potential difference required to stop the electrons is measured for various frequencies. If Y has a greater work function than X, which one of the following graphs best illustrates the expected results?

Options:

Answer:
A
Solution:

Both metals have slope .

Y has the larger work function, so its frequency-axis intercept is farther right.

Graph A follows.

Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect
⏱ 2mℹ️ Source: QB

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