Violet light is falling on a photosensitive material causing ejection of photoelectrons with maximum kinetic energy of 1ev
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Assuming that you have asked to comment on the statement: When a light falls on a photosensitive plate it causes the ejection of electrons from it. The electrons move of with a kinetic energy dependent on the energy of incident light and the work function of the photosensitive plate.
Energy of incident light= Work function of photosensitive plate +Kinetic energy of the electrons.
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Answer:
zero that is no photo emission
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