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(B) The number of photoelectrons emitted per second is directly proportional to the intensity of the incident light.For a point source of light,the in

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number of electrons emitted is a quarter of the initial number

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(B) The number of photoelectrons emitted per second is directly proportional to the intensity of the incident light.For a point source of light,the intensity $I$ follows the inverse square law: $I \propto \frac{1}{d^2}$,where $d$ is the distance from the source.When the distance is doubled $(d' = 2d)$,the new intensity $I'$ becomes $I' = \frac{I}{2^2} = \frac{I}{4}$.Since the number of photoelectrons emitted is directly proportional to the intensity,the number of photoelectrons emitted becomes one-fourth of the initial number.The energy of each emitted electron depends on the frequency of the incident light,not on its intensity. Therefore,the energy of each emitted electron remains unchanged.

$A$ photoelectric cell is illuminated by a point source of light $1 \ m$ away. When the source is shifted to $2 \ m$,then:

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