 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.  Forensic Science: An Illustrated Dictionary - 220. lappuseautors: John C. Brenner - 2003 - 296 lapasIerobežota priekšskatīšana - Par šo grāmatu
 | C. Welborne Piper - 1901 - 186 lapas
...relative refractive index from air into glass ; or, to put the relationship of the angles in another form, the ratio of the sine of the angle of incidence to the .sine of the angle of refraction equals the relative refractive index. This is called the law of sines. The,course of a ray... | |
 | Sir Richard Glazebrook - 1902 - 236 lapas
...is called the Refractive Index of the medium. To find the refractive index, then, we require to know the ratio of the sine of the angle of incidence to the sine of the angle of refraction. If the medium from which the light is incident be air, then for all transparent bodies... | |
 | Julius Hortvet - 1899 - 304 lapas
...refraction FR T?I~) and -=r^ = the index of refraction. r K Hence the index of refraction is defined also as the ratio of the sine of the angle of incidence to the sine of the angle of refraction. The index of refraction is different for rays of different colors, increasing from the... | |
 | William Albert Noyes - 1903 - 568 lapas
...meant the constant calculated by the formula : M(rf - 1) M = Molecular weight. « = Index of refraction (ratio of the sine of the angle of incidence to the sine of the angle of refraction, or ratio of the velocity of light in air to that in the substance). d = Density or specific... | |
 | William Marshall Watts - 1904 - 414 lapas
...is called the sine of the angle SIP. The refractive index, usually denoted by the symbol /*, is then the ratio of the sine of the angle of incidence to the sine of the angle of refraction ; for, since TI = SI, The formula sin i sin r = ju.; or sin /" = fi. sin r, we shall, no... | |
 | Charles Riborg Mann, George Ransom Twiss - 1905 - 488 lapas
...dividing that for air-glass by that for air-water? Show how. 3. The index of refraction is shown to be the ratio of the sine of the angle of incidence to the sine of the angle of refraction, Art. 354. If the light falls perpendicularly on a surface of glass, so that the angle of... | |
 | Silas Ellsworth Coleman - 1906 - 456 lapas
...following laws of refraction have been established by experiment : — I. Whatever the angle of incidence, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant for the same two media, but varies with different media. II. The angles of incidence and refraction... | |
 | Ralph S. Minor - 1906 - 268 lapas
...Watson, p. 480. The refractive index 'of a substance for light of a given wave-length may be denned as the ratio of the sine of the angle of incidence to the sine of the angle of refraction, when the substance is the receiving medium. The beam of light is thought of as traveling... | |
 | Joseph Albertus Culler - 1906 - 440 lapas
...light passes from a denser to a rarer medium. 275. Index of Refraction. The index of refraction, is the ratio of the sine of the angle of incidence to the sine of the angle of refraction. Let AO, Fig. 219, be a ray of light passing from air, say, into water, nn' is the perpendicular,... | |
 | Lynn Banks McMullen - 1906 - 476 lapas
...of using the ratio of the speeds in making a diagram, it is easier to use the equal ratio — that of the sine of the angle of incidence to the sine of the angle of refraction — and to construct the angle of refraction so that its sine shall bear the required ratio... | |
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