Chemistry, 13.06.2020 05:57, ahmedeldyame

In a photoelectric experiment a student uses a light source whose frequency is greater than that needed to eject electrons from a certain metal. However, after continuously shining the light on the same area of the metal for a long period of time the student notices that the maximum kinetic energy of ejected electrons begins to decrease, even though the frequency of the light is held constant. How would you account for this behavior?

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In a photoelectric experiment a student uses a light source whose frequency is greater than that nee...