PHYS 2004 Lecture Notes - Lecture 23: Photon
1 Dec 2017
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A more intense light means more photons of the same energy, not more energetic photons. These photons eject a larger number of photoelectrons and cause a larger current, exactly as. Also, if each photon transfers its energy hf to just one electron, that electron immediately has enough energy to escape. The current should begin instantly, with no delay, exactly as lenard had observed. There is a distribution of kinetic energies, because different photoelectrons require different amounts of energy to escape, but the maximum kinetic energy is. Ei(cid:374)stei(cid:374)"s theo(cid:396)y p(cid:396)edi(cid:272)ts that the stoppi(cid:374)g pote(cid:374)tial is (cid:396)elated to light f(cid:396)e(cid:395)ue(cid:374)(cid:272)y (cid:271)y. The stopping potential does not depend on the intensity of the light, which is exactly what.
