In the external photoelectric effect, electrons are liberated from the surface of a metallic conductor by absorbing energy from light shining on the metal's surface.
(electrons; are; liberated from the surface of a metallic conductor by absorbing energy from light shining on the metal's surface; L:In the external photoelectric effect)
electrons
are
liberated from the surface of a metallic conductor by absorbing energy from light shining on the metal's surface L:In the external photoelectric effect