 | James Renwick - 1822 - 476 pagina’s
...ratio of the sine of incidence to that of refraction must be constant, and reciprocally proportioned to the ratio of the velocities of light in the two media. We have already seen this same law deduced from experiment. See §642. 655. It may sometimes happen,... | |
 | Humphrey Lloyd - 1857 - 258 pagina’s
...proportion of the refractive indices. The result is, therefore, decisive in favour of the wave-theory. (38) The refractive index being equal to the ratio of the...light in the two media (direct or inverse) it follows, whichsoever theory we adopt, that any change in the velocity of the incident ray must cause a variation... | |
 | Humphrey Lloyd - 1857 - 256 pagina’s
...same result. According to both, we have seen, the ratio of the sines of incidence and refraction is equal to the ratio of the velocities of light in the two media, and is therefore constant. But there is this important difference between them : in the wave-theory,... | |
 | Adolphe Ganot, William Guy Peck - 1871 - 516 pagina’s
...multiplied by a constant quantity. This constant multiplier is called the index of refraction, and is equal to the ratio of the velocities of light in the two media. What is the point of incidence? Ilinstrate. The refracted ray? Illustrate. The angle and plane of incidence... | |
 | Adolphe Ganot - 1875 - 516 pagina’s
...multiplied by a constant quantity. This constant multiplier is called the index of refraction, and is equal to the ratio of the velocities of light in the two media. What is the point of incidence? Illustrate. The refracted ray? Elnetrate. The angle and plane of incidence... | |
 | Alfred Barnard Basset - 1892 - 466 pagina’s
...than in a more highly refracting medium such as glass. It also follows that the index of refraction is equal to the ratio of the velocities of light in the two media. The direction of the refracted ray may be found by the following geometrical construction, which as... | |
 | Samuel Smiles (Jr.) - 1910 - 1086 pagina’s
...principle that the relation between the sines of the angles of incidence and refraction is constant, and is equal to the ratio of the velocities of light in the two media. Thus, if i is the angle of incidence, and r the angle of refraction, and vl and if the velocities of... | |
 | Samuel Smiles - 1910 - 610 pagina’s
...principle that the relation between the sines of the angles of incidence and refraction is constant, and is equal to the ratio of the velocities of light in the two media. Thus, if i is the angle of incidence, and r the angle of refraction, and »' and if the velocities... | |
 | Silas Ellsworth Coleman - 1911 - 672 pagina’s
...of (he angle of refraction is constant, for the same two media. It can be shown that this ratio is equal to the ratio of the velocities of light in the two media. When light passes from a vacuum (or air) into any substance, the 395 Air ratio of the sine of the angle... | |
 | John Oren Reed, Karl Eugen Guthe - 1911 - 658 pagina’s
...medium. Again, it has been shown (Art. 486) that the relative index of refraction for two media is equal to the ratio of the velocities of light in the two media. Denoting the velocity of radiation in vacuo by FJ and remembering that c and /* are unity in vacuo,... | |
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This constant multiplier is called the index of refraction, and is equal to the ratio of the velocities of light in the two media. 
