photoelectric threshold frequency

  • 1threshold frequency — /ˈθrɛʃhoʊld ˌfrikwənsi/ (say threshhohld .freekwuhnsee) noun the lowest frequency of radiation which, when incident upon a photoelectric material, will produce a photoelectric effect …

  • 2photoelectric threshold — noun : the least quantum energy or the lowest frequency that will enable incident radiation to release photoelectrons from a surface * * * Physics. the minimum frequency or maximum wavelength of incident radiation necessary to release photons… …

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  • 3threshold frequency — noun : the minimum frequency of radiation that will produce a photoelectric effect …

    Useful english dictionary

  • 4photoelectric threshold — Physics. the minimum frequency or maximum wavelength of incident radiation necessary to release photons from a given surface. * * * …

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  • 5Photoelectric effect — The photoelectric effect is a quantum electronic phenomenon in which electrons are emitted from matter after the absorption of energy from electromagnetic radiation such as x rays or visible light.cite book | title = Physics for Scientists… …

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  • 6radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …

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  • 7Wave–particle duality — Quantum mechanics Uncertainty principle …

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  • 8Introduction to quantum mechanics — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Quantum mechanics. Quantum mechanics …

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  • 9electricity — /i lek tris i tee, ee lek /, n. 1. See electric charge. 2. See electric current. 3. the science dealing with electric charges and currents. 4. a state or feeling of excitement, anticipation, tension, etc. [1640 50; ELECTRIC + ITY] * * *… …

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  • 10quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …

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