 | 1891 - 592 páginas
...direction of its course is altered, and that this change of direction varies with different media, but that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is always the same for the same medium, whatever may be, within a certain limit, the obliquity... | |
 | Henry Smith Carhart, Horatio Nelson Chute - 1892 - 400 páginas
...and refraction coincide. 511. Indices of Refraction. — By the Absolute index of refraction is meant the ratio of the sine of the angle of incidence to the sine of the angle of refraction when the ray passes from a vacuum into the substance. The Relative index of refraction is the index for... | |
 | Howard Forde Hansell - 1892 - 284 páginas
...rays of light which pass through it, away from the direction pursued by them before entering it, or the ratio of the sine of the angle of incidence to the sine of the angle of refraction. The index of refraction of air is taken as I, that of water, as 1.336 (sin. : i. : sin.... | |
 | Howard Forde Hansell, James H. Bell - 1892 - 268 páginas
...rays of light which pass through it, away from the direction pursued by them before entering it, or the ratio of the sine of the angle of incidence to the sine of the angle of refraction. The index of refraction of air is taken as I, that of water, as 1.336 (sin. : i. : sin.... | |
 | Henry Smith Carhart, Horatio Nelson Chute - 1892 - 400 páginas
...in a reverse direction it is bent from the normal. II. Whatever the obliquity of the incident ray, 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. III. The planes of the angles of incidence and refraction... | |
 | Alfred Barnard Basset - 1892 - 466 páginas
...modification in the constitution of the refracted light. 89. The index of refraction of the ordinary ray is the ratio of the sine of the angle of incidence to the angle of refraction, which as we have already seen is constant for all angles. The extraordinary index... | |
 | Sir Richard Gregory - 1893 - 320 páginas
...follows : — (1.) The incident ray, the normal, and the- refracted ray all lie in one plane. (2.) 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 media from and to which the light is passing remain... | |
 | Sir Richard Tetley Glazebrook - 1894 - 482 páginas
...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... | |
 | Sir Richard Glazebrook - 1894 - 292 páginas
...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... | |
 | S. P. Meads - 1894 - 298 páginas
...incidence. Measure CM the sine of the angle of refraction. Divide DA by CE. The index of refraction is the ratio of the sine of the angle of incidence to the sine of the angle of refraction. This is constant for any two substances, whatever be the angle of incidence. The index... | |
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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. 
