First slide

Photo Electric Effect

Question

The number of photoelectrons emitted by metallic surface when photons of frequency v is incident on it (higher than the threshold frequency v₀) is proportional to

Moderate

A

threshold frequency (v₀)
B

intensity of light
C

frequency of light (v)
D

V – V₀

Solution

The number of photoelectrons decides the photocurrent. Assuming, that the number of electrons emitted depends on the number of photons incident, the number of photoelectrons depends on the intensity of light.

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