photoelectric emission

См. также в других словарях:

• photoelectric emission — noun the release or absorption of quanta above a certain energy level • Hypernyms: ↑emission * * * noun : photoemission …   Useful english dictionary

• Photoelectric 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… …   Wikipedia

• photoelectric effect — Physics. the phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface. Also called photoemission. [1890 95] * * *… …   Universalium

• photoelectric — ► ADJECTIVE ▪ characterized by or involving the emission of electrons from a surface by the action of light …   English terms dictionary

• photoelectric — [fōt΄ō ē lek′trik] adj. [ PHOTO + ELECTRIC] of or having to do with the electric effects produced by light or other radiation, esp. as in the emission of electrons by certain substances when subjected to light or radiation of suitable wavelength …   English World dictionary

• photoelectric effect — noun : the effect of light falling upon metal surfaces and causing them to give out electrons, to generate an electromotive force, or to undergo a change in resistance * * * Physics. the phenomenon in which the absorption of electromagnetic… …   Useful english dictionary

• Photoelectric flame photometer — A photoelectric flame photometer is a device used in inorganic chemical analysis to determine the concentration of certain metal ions, among them sodium, potassium, lithium, and calcium.In principle, it is a controlled flame test with the… …   Wikipedia

• émission photoélectrique — išorinis fotoelektrinis reiškinys statusas T sritis automatika atitikmenys: angl. external photoelectric effect vok. Fotoemission, f; äußerer lichtelektrischer Effekt, m rus. внешний фотоэффект, m; фотоэлектронная эмиссия, f pranc. effet photo… …   Automatikos terminų žodynas

• photoelectric effect — noun Date: 1892 the emission of free electrons from a metal surface when light strikes it …   New Collegiate Dictionary

• photoelectric effect — noun The emission of electrons from the surface of a material following the absorption of electromagnetic radiation …   Wiktionary

• photoelectric — adjective characterized by or involving the emission of electrons from a surface by the action of light. Derivatives photoelectricity noun …   English new terms dictionary