| George Fownes - Chemistry - 1878 - 1003 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... | |
| Robert Ellis Dudgeon - Eye - 1878 - 92 pages
...the angle of refraction as the index of refraction of the lens is to i. Thus if the lens be of water, **the sine of the angle of incidence to the sine of the angle of** refraction will be as i • 3 to i ; if of glass, as i • 5 to i ; if of diamond, as 2 -4 to I, and... | |
| Adolphe Ganot - Physics - 1881 - 530 pages
...indices of refraction for the two media. When a ray passes from a vacuum into any medium, the ratio **of the sine of the angle of incidence to the sine of the angle of** refraction is always greater than unity, and is called the absolute index of refraction, or simply... | |
| Augustin Privat-Deschanel - Physics - 1881
...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... | |
| Conwy Lloyd Morgan - Water - 1882 - 216 pages
...this perpendicular. 1541. In water at whatever oblique angle the ray strikes the surface, the ratio **of the sine of the angle of incidence to the sine of the angle of** refraction is 1.336. In other substances the ratio is different. 1542. If instead of passing from the... | |
| Henry Kiddle - Physics - 1883 - 272 pages
...greater or less than the former, according to the relative density of the refracting medinm. The ratio **of the sine of the angle of incidence to the sine of the angle of** refraction is called the index of refrnction.\ It varies with the medinm, * " To account for refraction,... | |
| Hermann Wilhelm Vogel - 1883
...mathematicians call the sines of the angles. Thus ad is the sine of i, and bf the sine of r. The ratio **of the sine of the angle of incidence to the sine of the angle of** refraction is constant. This ratio is, when light leaves air for water, 4 to 3 ; that is, the sine... | |
| William Barlow (of Muswell Hill.) - 1885
...Again, since the ratio of the velocity in the incident waves to the velocity in the refracted waves is **that of the sine of the angle of incidence to the sine of the angle of** refraction, y\ TJ« and jj-jj = sine of the angle of incidence, f1 H and jTy- = sine of the angle of... | |
| Alexander Macfarlane - Mathematics - 1885 - 357 pages
...into another medium B, it is bent out of its former straight course in such a manner that the ratio **of the sine of the angle of incidence to the sine of the angle of** refraction is constant. This physical ratio is expressed by /t L parallel per L along in A — L parallel... | |
| Alexander Macfarlane - Mathematics - 1885 - 357 pages
...medium B, it is bent out of its former straight course in such a manner that the ratio of the sino **of the angle of incidence to the sine of the angle of** refraction is constant. This physical ratio is expressed by p. L parallel per L along in A — L parallel... | |
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