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I would like to know if the Kinetic Energy of electrons emitted from a metal is constant for all emitted electrons if the metal is subjected to a constant frequency of light that is higher than the threshold frequency of the metal.

Initially I felt that the electrons have different Kinetic Energy values as they may not all have the same work function (different energy levels?).

This is based on the equation E(kinetic):electron = E:light wave - work_function(joules)

Thanks