Question

State the characteristics of photoelectric effect

Answer 1

Answer:

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Explanation:

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characteristics of photoelectric effect

1.when light wave of sufficient energy indicate on a metal then electrons are ejected from its surface this is called photoelectric effect

2.photoelectron are ejected by a metal surface when the frequency of incident radiation becomes equals greater than the work function of the metal

3.the number of photoelectron emmited per second is directly proportional to the intensity of incident radiation

4.no time lag exist in absorption of a photon and ejection of electron from metal surface

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Answer 2

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The photoelectric effect has three important characteristics :

(1) the absence of a lag time,

(2) the independence of the kinetic energy of photoelectrons on the intensity of incident radiation, and

(3) the presence of a cut-off frequency