GK
NUCLEAR SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ea-a
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Eb-b
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Ee-W
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Ec-W
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Detailed explanation-1: -The maximum kinetic energy KEe of ejected electrons (photoelectrons) is given by KEe=h–, where h is the photon energy and is the workfunction (or binding energy) of the electron to the particular material.
Detailed explanation-2: -Photoelectric Effect Formula is the frequency of the incident photon. W is a work function. E is the maximum kinetic energy of ejected electrons: 1/2 mv².
Detailed explanation-3: -Answer and Explanation: The relation between the kinetic energy of the ejected electrons, the energy of the incident photon, and the work function in the photoelectric effect is given by Einstein’s equation, Ephoton=Wf+K E p h o t o n = W f + K .
Detailed explanation-4: -A more intense beam of light would eject electrons with greater energy than a less intense beam. Hence, kinetic energy is directly proportional to the frequency of the incident radiation.