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It may also be defined as the sine of the angle of incidence divided by the sine of the angle of refraction, as light passes from air into the substance.
A Treatise on Optics - Page 22
by David Brewster, Alexander Dallas Bache - 1833 - 95 pages

## Dictionary of Physics

Michael Chapple - 1999 - 282 pages
...and the normal to the refracting surface at the point of incidence all lie in the same plane. 2nd law The sine of the angle of incidence divided by the sine of the angle of refraction is a constant for two given media. The following diagram illustrates a typical situation. The first...

## Reference Data for Engineers: Radio, Electronics, Computers and Communications

Mac E. Van Valkenburg - 2001 - 1696 pages
...two mediums if the angle of incidence is unequal to 90°. The index of refraction for a substance is the sine of the angle of incidence divided by the sine of the angle of refraction. Refractive index varies with wavelength and ranges from 1. 002914 (air at 656 nm) to 2.7 (crystalline...

## Physics

Christopher E. Cooper - 2001 - 284 pages
...Snell's law of refraction in optics, the rule that when a ray of light passes from one medium to another, the sine of the angle of incidence divided by the sine of the angle of refraction is equal to the ratio of the indices of refraction in the two media. For a ray passing from medium...

## Digital Audio Technology: A Guide to CD, MiniDisc, SACD, DVD(A), MP3 and DAT.

Luc Baert - 2001 - 358 pages
...the interface of the two media if the angle of incidence is not 90°. The index of refraction n is the sine of the angle of incidence divided by the sine of the angle of refraction, as illustrated in Figure 10.4. Refractive index varies with wavelength and ranges from 1.0003 to 2.7....

## Visualizing Statistical Models And Concepts

R.W. Farebrother, Michael Schyns - 2002 - 276 pages
...translucent media. As a light beam strikes the boundary between two media, it bends in such a way that the sine of the angle of incidence divided by the sine of the angle of refraction is proportional to the ratio of the densities of the two media. In this context, the principle that...

## The History of the Laser

Mario Bertolotti - 2004 - 346 pages
...colourless glass is shown as a function of wavelength expressed in nanometres ( 1 nm = 10~9 m). that the sine of the angle of incidence divided by the sine of the angle of refraction is equal to the ratio of the refractive index of the second medium to the refractive index of the incidence...

## Coatings from A to Z: A Concise Compilation of Technical Terms

Paolo Nanetti - 2006 - 280 pages
...corresponding angle in the air (angle of incidence). Mathematically, the refractive index is the ratio of the sine of the angle of incidence divided by the sine of the angle of refraction. The measurement of the refractive index (-» refractometer) serves to test transparent liquids, like...