27.4 The Photoelectric Effect Photo Electric Effect

Explanation: This applet simulates the photoelectric effect. The setting is similar to the one described in Section 27.4, and depicted in Figure 27.6. The stopping potential is equal to the maximum kinetic energy of the photoelectrons. The minimum energy needed by the photons to free the electrons and produce a measurable current is given by Equation 27.5.

Source: Michael Vershinin