 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.  Report of the Annual Meeting - Page 39by British Association for the Advancement of Science - 1873Full view - About this book
 | William Holms Chambers Bartlett - 1859 - 408 pages
...the ratio of the velocity of the incident to that of the deviated light, which is equal to the ratio of the sine of the angle of incidence to the sine of the angle of refraction or of reflexion, according as m is positive or minus unity. The numerical value of m, has... | |
 | Désiré van Monckhoven - 1867 - 296 pages
...the refracted ray, and the normal, are all in the same plane. 2nd. For the same two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant, whatever may be the angle of incidence. This law has received the name of "... | |
 | Richard Wormell - 1871 - 288 pages
...perpendicular to oc, then whatever the angle of incidence may be, the ratio — remains the same. BT The ratio of the sine of the angle of incidence to the sine of the angle of refraction is termed the refractive index for the given media. 37. Having given the direction of the... | |
 | British Association for the Advancement of Science - 1873 - 902 pages
...1803 to Professor Purser, of Queen's College, Belfast ; and Prof. Purser, on the moment, made out nn analytical investigation which depended on the proportionality...sine of the. angle of refraction holding good for infiuitely thin laminie differing infinitely little in density, und holding good to the extreme case... | |
 | Augustin Privat-Deschanel - 1873 - 298 pages
...course of a returning ray is the same as that of a direct ray. 724. Indices of Refraction. — The ratio of the sine of the angle of incidence to the sine of the angle of refraction, when a ray passes from one medium into another, is called the relative index of refraction... | |
 | a. privat deschanel - 1873 - 1076 pages
...course of a returning ray is the same as that of a direct ray. 724. Indices of Refraction.—The ratio of the sine of the angle of incidence to the sine of the angle of refraction, when a ray passes from one medium into another, is called the relative index of refraction... | |
 | John Minot Rice, William Woolsey Johnson - 1875 - 102 pages
...of light is that which occupies the least time is consistent with the observed fact, that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant, provided we suppose the velocities to increase with the densities. This last... | |
 | Edward Brooks - 1876 - 588 pages
...weight of an equal volume of some other body assumed as a standard. The index of refraction is the ratio of the sine of the angle of incidence to the sine of the angle of refraction. The differential co-eBicient is the ratio of the increment of the function to that of the... | |
 | Isaac Todhunter - 1877 - 450 pages
...the law is called for brevity the law of sines. 229. The number which expresses the fixed proportion of the sine of the angle of incidence to the sine of the angle of refraction is different in different media. 4 For water it is about -; so that the sine of the angle... | |
 | George Fownes - 1878 - 1062 pages
...been explained that the' index of refraction of any transparent substance, that is to say, the ratio of the sine of the angle of incidence to the sine of the angle of refraction, is a constant quantity, so long as the density of the substance remains constant: — Bin... | |
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