Textbook Compulsory (3-5) 4.2 "Photoelectric Effect and Light Quantum Hypothesis" ppt 1. Photoelectric effect: the phenomenon of light illuminating a metal surface and causing objects to emit electrons 2. Photoelectron: electrons flying out of a metal in the photoelectric effect. 3. Photocurrent: The current formed by the directional movement of photoelectrons. 4. Maximum initial kinetic energy: The kinetic energy of the photoelectron when it escapes from the metal.
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