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Refractive index - Wikipedia
In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium. It is defined as =, where c is the speed of light in vacuum and v is the phase velocity of light in the medium. For example, the refractive index of water is 1.333, meaning that light travels 1.333 times faster in vacuum than in the water....
Last update Tue, 31 Jul 2018 07:13:00 GMT Read More
Refractive index | Physics: Problems and Solutions
The refractive index (or index of refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves) is reduced inside the medium. For example, typical soda-lime glass has a refractive index of 1.5, which means that in glass, light travels at $ 1/1.5=0.67 ...
Last update Mon, 13 Aug 2018 23:33:00 GMT Read More
Refractive Index - an overview | ScienceDirect Topics
6.2.1 Refractive Index. The refractive index, n, of a material is defined as the ratio of the velocity of light in a vacuum relative to the velocity of light passing through that material The refractive index in a vacuum is defined as 1, and the refractive index of air at 20 °C and at atmospheric pressure is 1.0003, so the very small difference is usually ignored....
Last update Mon, 23 Jul 2018 05:57:00 GMT Read More
IIT JEE Physics : Optics previous 15 years questions
We present here the previous 15 years IIT JEE questions and answers in Optics...
Last update Sat, 11 Aug 2018 16:40:00 GMT Read More