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Q.

The number of electrons emitted by a surface exposed to light is directly proportional to

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a

Frequency of light.

b

Work function of metal.

c

Threshold wave length.

d

Intensity of light.

answer is D.

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Detailed Solution

The number of electrons emitted by a surface exposed to the light is directly proportional to intensity of light.

It does not depend on (i) frequency of light (ii) work function of a metal (iii) threshold wavelength.

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