Thermionic emission, The electron, JJ Thompson, GJ Stoney, Robert Millikan, Maltese cross cathode ray tube, Cathode ray tube, Photoelectric effect, Einsteins Photoelectric Law, Work function, Energy of a photon, Energy of electron released in photoelectric effect, Threshold frequency, Light intensity and photocurrent, Wavelength of light and the photoelectric effect, Photocell.

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