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lowering of index - translation to ρωσικά
MATHEMATICAL OPERATIONS RELATING DIFFERENT TYPES OF TENSOR
Raising or lowering indices; Index gymnastics; Raising indices; Lowering indices; Raising and lowering of indices; Raising an index; Lowering an index; Index raising; Index lowering
lowering of index
математика
опускание индекса
index of refraction
![[[Diamond]]s have a very high refractive index of 2.417.](https://commons.wikimedia.org/wiki/Special:FilePath/Brillanten.jpg?width=200 "[[Diamond]]s have a very high refractive index of 2.417.")
![A [[calcite]] crystal laid upon a paper with some letters showing [[double refraction]]](https://commons.wikimedia.org/wiki/Special:FilePath/Calcite.jpg?width=200 "A [[calcite]] crystal laid upon a paper with some letters showing [[double refraction]]")
![power]] of a [[magnifying glass]] is determined by the shape and refractive index of the lens.](https://commons.wikimedia.org/wiki/Special:FilePath/Lupa.na.encyklopedii.jpg?width=200 "power]] of a [[magnifying glass]] is determined by the shape and refractive index of the lens.")
![Birefringent materials can give rise to colors when placed between crossed polarizers. This is the basis for [[photoelasticity]].](https://commons.wikimedia.org/wiki/Special:FilePath/Plastic Protractor Polarized 05375.jpg?width=200 "Birefringent materials can give rise to colors when placed between crossed polarizers. This is the basis for [[photoelasticity]].")
![[[Refraction]] of light at the interface between two media of different refractive indices, with ''n''<sub>2</sub> > ''n''<sub>1</sub>. Since the [[phase velocity]] is lower in the second medium (''v''<sub>2</sub> < ''v''<sub>1</sub>), the angle of refraction ''θ''<sub>2</sub> is less than the angle of incidence ''θ''<sub>1</sub>; that is, the ray in the higher-index medium is closer to the normal.](https://commons.wikimedia.org/wiki/Special:FilePath/Snells law.svg?width=200 "[[Refraction]] of light at the interface between two media of different refractive indices, with ''n''<sub>2</sub> > ''n''<sub>1</sub>. Since the [[phase velocity]] is lower in the second medium (''v''<sub>2</sub> < ''v''<sub>1</sub>), the angle of refraction ''θ''<sub>2</sub> is less than the angle of incidence ''θ''<sub>1</sub>; that is, the ray in the higher-index medium is closer to the normal.")
![The colors of a [[soap bubble]] are determined by the [[optical path length]] through the thin soap film in a phenomenon called [[thin-film interference]].](https://commons.wikimedia.org/wiki/Special:FilePath/Soap bubble sky.jpg?width=200 "The colors of a [[soap bubble]] are determined by the [[optical path length]] through the thin soap film in a phenomenon called [[thin-film interference]].")
![A [[split-ring resonator]] array arranged to produce a negative index of refraction for [[microwaves]]](https://commons.wikimedia.org/wiki/Special:FilePath/Split-ring resonator array 10K sq nm.jpg?width=200 "A [[split-ring resonator]] array arranged to produce a negative index of refraction for [[microwaves]]")
![In [[optical mineralogy]], [[thin section]]s are used to study rocks. The method is based on the distinct refractive indices of different [[mineral]]s.](https://commons.wikimedia.org/wiki/Special:FilePath/Thin section scan crossed polarizers Siilinjärvi R636-105.90.jpg?width=200 "In [[optical mineralogy]], [[thin section]]s are used to study rocks. The method is based on the distinct refractive indices of different [[mineral]]s.")
![Thomas Young]] coined the term ''index of refraction''.](https://commons.wikimedia.org/wiki/Special:FilePath/Thomas Young (scientist).jpg?width=200 "Thomas Young]] coined the term ''index of refraction''.")
![[[Total internal reflection]] can be seen at the air-water boundary.](https://commons.wikimedia.org/wiki/Special:FilePath/Total internal reflection of Chelonia mydas.jpg?width=200 "[[Total internal reflection]] can be seen at the air-water boundary.")
![Light of different colors has slightly different refractive indices in water and therefore shows up at different positions in the [[rainbow]].](https://commons.wikimedia.org/wiki/Special:FilePath/WhereRainbowRises.jpg?width=200 "Light of different colors has slightly different refractive indices in water and therefore shows up at different positions in the [[rainbow]].")
RATIO OF THE SPEED OF LIGHT IN VACUUM TO THAT IN THE MEDIUM
Index of refraction; Refractive indices; Complex index of refraction; Index of Refraction; Refraction index; Refracting index; Refractivity; Refractive Index; Negative index of refraction; Index Of Refraction; Absolute refractive index; Optical extinction coefficient; Complex refractive index; Group index
общая лексика
показатель преломления
оптика
коэффициент преломления
refractive index
RATIO OF THE SPEED OF LIGHT IN VACUUM TO THAT IN THE MEDIUM
Index of refraction; Refractive indices; Complex index of refraction; Index of Refraction; Refraction index; Refracting index; Refractivity; Refractive Index; Negative index of refraction; Index Of Refraction; Absolute refractive index; Optical extinction coefficient; Complex refractive index; Group index
общая лексика
показатель преломления
оптика
коэффициент преломления
Ορισμός
митотический индекс
показатель митотической активности ткани или культуры ткани, представляющий собой число делящихся путем митоза клеток из 1000 изученных на гистологическом препарате.
Βικιπαίδεια
Raising and lowering indices
In mathematics and mathematical physics, raising and lowering indices are operations on tensors which change their type. Raising and lowering indices are a form of index manipulation in tensor expressions.
