- index of refraction of a substance
- показатель преломления вещества (отношение скорости света в вакууме к его скорости в данном веществе или среде)
Англо-русский словарь промышленной и научной лексики. 2014.
index of refraction of a substance
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Index Of Refraction — This is the measure of the refracting power of a transparent substance. It is the ratio of the speed of light in a vacuum compared to the speed of light as it passes through the transparent substance. See Invisible and Refraction … The writer's dictionary of science fiction, fantasy, horror and mythology
Refractive index — Refraction of light at the interface between two media. In optics the refractive index or index of refraction of a substance or medium is a measure of the speed of light in that medium. It is expressed as a ratio of the speed of light in vacuum… … Wikipedia
Index-matching material — In optics and fiber optics, an index matching material is a substance, usually a liquid, cement (adhesive), or gel, which has an index of refraction that closely approximates that of an optical element or fiber, and is used to reduce Fresnel… … Wikipedia
refractive index — (N) The change in direction (apparent bending) of a light ray passing from one medium to another of different density, as from air to water or glass. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is the … Forensic science glossary
refractive index — Optics. See index of refraction. [1830 40] * * * ▪ physics also called Index Of Refraction, measure of the bending of a ray of light when passing from one medium into another. If i is the angle of incidence of a ray in vacuum (angle… … Universalium
refractive index — noun the ratio of the velocity of light in a vacuum to that in a medium • Syn: ↑index of refraction • Hypernyms: ↑ratio * * * reˌfractive ˈindex 7 [refractive index] noun … Useful english dictionary
physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction the systematic study of the inorganic world … Universalium
brewster's law — noun Usage: usually capitalized B Etymology: after Sir David Brewster : a statement in optics: when unpolarized light of given wavelength is incident upon the surface of a transparent substance it experiences maximum plane polarization at the… … Useful english dictionary
radiation — 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… … Universalium
History of Physics — History of Physics † Catholic Encyclopedia ► History of Physics The subject will be treated under the following heads: I. A Glance at Ancient Physics; II. Science and Early Christian Scholars; III. A Glance at Arabian Physics; IV.… … Catholic encyclopedia
light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics … Universalium
