A-LevelPhysicsQuantum physicsFeb/Mar 2020Paper 4 Q107 Marks
10 (a) By reference to the photoelectric effect, explain what is meant by work function energy. (b) In an experiment, electromagnetic radiation of frequency f is incident on a metal surface. The results in Fig. 10.1 show the variation with frequency f of the maximum kinetic energy E_MAX of electrons emitted from the surface. [Figure 10.1]
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