 When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.  A Treatise on Geometrical Optics - Page 15by Robert Alfred Herman - 1900 - 344 pagesFull view - About this book
 | George Senter - 1911 - 456 pages
...refracted ray) and i\ and v% the respective velocities of light in the two media, it can be shown that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant, and is equal to the ratio of the velocity of light in the two media. The ratio in question... | |
 | Arthur Lalanne Kimball - 1911 - 710 pages
...AC. sinr hence dividing, we find but therefore BC AD BC sn sin r sn sin rv From this it appears that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is the same as the ratio of the velocities of light in the two media, and must, therefore, be constant... | |
 | Reginald Stanley Clay - 1911 - 554 pages
...Refraction. Apparatus. — A half plate cutting-shape,1 drawing-board, paper pins, and millimetre scale. 4. The Ratio of the Sine of the Angle of Incidence to the Sine of the Angle of Refraction, for any one Medium, is a Constant, and is called the Refractive Index. — (a) Draw a line... | |
 | William Francis Magie - 1911 - 588 pages
...incident and refracted rays lie in a plane which contains the normal to the refracting surface, and the ratio of the sine of the angle of incidence to the sine of the p angle of refraction is constant. In terms Fig. 165. of the symbols which we have adopted we express... | |
 | William Francis Magie - 1911 - 588 pages
...incident and refracted rays lie in a plane which contains the normal to the refracting surface, and the ratio of the sine of the angle of incidence to the sine of the p angle of refraction is constant. In terms Fig. IBS. of the symbols which we have adopted we express... | |
 | Silas Ellsworth Coleman - 1911 - 672 pages
...--.. 7,-p; PTT = . Hence the law of refraction: Ivnaltvcr EF •*- LO siner the angle of incidence, the ratio of the sine of the angle of incidence to the sine of (he angle of refraction is constant, for the same two media. It can be shown that this ratio is equal... | |
 | Isaac Asimov - 1988 - 798 pages
...Snell-Descartes law of refraction states that whenever light passes from one transparent medium into another, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant.* The sine of angle x is usually abbreviated as sin AT, so the Snell-Descartes law can be... | |
 | Stuart M. Lee - 1995 - 176 pages
...velocity of light in a vacuum to its velocity in a transparent specimen. It is expressed as the ratio to the sine of the angle of incidence to the sine of the angle of refraction. Refractivity The index of refraction minus 1. Specific refractivity is given by n — \ld... | |
 | Alan Francis Chalmers - 1990 - 166 pages
...Refraction The law in question is the assertion that, when a ray of light passes from one medium to another, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant characteristic of the pair of media. The law was discovered experimentally by Harriott, derived theoretically... | |
 | Bernt P. Stigum - 1990 - 1068 pages
...Another example is Snell's Law: "A ray of light, incident at a surface separating two media, is bent. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for two given media." As stated, the law is a theorem in the theory of optics that can be derived from... | |
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