Question

Which factor determines the maximum kinetic energy of an emitted electron?

Answer 1

This value is the maximum possible kinetic energy of the photoelectron. The equation, which Einstein determined, says (electron's maximum kinetic energy) = (energy of the incident light energy packet) minus (the work function). For the example, the electron's maximum kinetic energy is: 2.99 eV - 2.75 eV = 0.24 eV.