User:Johnjbarton/sandbox/introduction to quantum mechanics: Difference between revisions
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Johnjbarton (talk | contribs) →Quantization of bound electrons in atoms: Rydberg, Rutherford, Bohr in 4 paragraphs. |
Johnjbarton (talk | contribs) →Evidence of quanta from the photoelectric effect: add ref to pais |
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Einstein then predicted that the electron velocity would increase in direct proportion to the light frequency above a fixed value that depended upon the metal. Here the idea is that energy in energy-quanta depends upon the light frequency; the energy transferred to the electron comes in proportion to the light frequency. The type of metal gives a [[work function | barrier]], the fixed value, that the electrons must climb over to exit and be measured.
Ten years elapsed before Einstein's prediction was completely verified. During that time many scientists rejected the revolutionary idea of quanta.<ref name=pais>{{Cite journal |last=Pais |first=A. |date=1979-10-01 |title=Einstein and the quantum theory |url=https://link.aps.org/doi/10.1103/RevModPhys.51.863 |journal=Reviews of Modern Physics |language=en |volume=51 |issue=4 |pages=863–914 |doi=10.1103/RevModPhys.51.863 |issn=0034-6861}}</ref> But Planck's and Einstein's concept was in the air and soon affected other theories.
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