WebPhosphorescence or phosphorescent is a physical phenomenon in which we observe luminosity caused by the absorption of radiations. In other words, phosphorescence is a process in which energy absorbed by any object is released in the form of light. The term ‘phosphor’ is the most frequently used term since the Middle Ages.

Web27/07/2022 · The meaning of PHOSPHORESCENCE is luminescence that is caused by the absorption of radiations (such as light or electrons) and continues for a noticeable time after these radiations have stopped.

WebPhosphorescence is a type of photoluminescence related to fluorescence. When exposed to light (radiation) of a shorter wavelength, a phosphorescent substance will glow, absorbing the light and reemitting it at a longer wavelength. Unlike fluorescence, a phosphorescent material does not immediately reemit the radiation it absorbs. Instead, a phosphorescent …

Web11/01/2020 · Phosphorescence Definition and Examples Simple Explanation. Phosphorescence releases the stored energy slowly over time. Basically, phosphorescent material is... Quantum Mechanics Explanation. In fluorescence, a surface absorbs and re-emits a photon almost instantly (about 10... History. The study ...

Webphosphorescence, emission of light from a substance exposed to radiation and persisting as an afterglow after the exciting radiation has been removed. Unlike fluorescence, in which the absorbed light is spontaneously emitted about 10-8 second after excitation, phosphorescence requires additional excitation to produce radiation and may last from …

Webphosphorescence 1. (General Physics) physics a. a fluorescence that persists after the bombarding radiation producing it has stopped b. 2. (General Physics) the light emitted in phosphorescence 3. (Chemistry) the emission of light during a chemical reaction, such as bioluminescence, in which ...

Web14/04/2020 · Phosphorescence is light released by matter after exposure to electromagnetic radiation, usually ultraviolet light. The energy source kicks an electron of an atom from a lower energy state into an “excited” higher energy state; then the electron releases the energy in the form of visible light (luminescence) when it falls back to a …

WebDefine Fluorescence and Phosphorescence. Answer: Fluorescence: High-energy radiation (such as ultraviolet or X-ray) is captured by electrons circling an atom and re-emitted as light energy, resulting in fluorescence. Phosphorescence: Phosphorescence is light energy emitted by a certain form of chemical reaction in which the reactants' excess ...

Webphosphorescence definition: 1. a kind of weak light that is created in the dark without noticeable heat: 2. a kind of weak…. Learn more.

WebAns.1. (b) Fluorescence &Phosphorescence: Fluorescence is light energy produced by a process where high-energy radiation (such as ultraviolet or X-ray) is absorbed by electrons surrounding an atom and is re-emitted as light energy. Phosphorescence is light energy produced by a particular type of chemical reactionwhere the excess chemical energy ...