| Alexander Macfarlane - Mathematics - 1885 - 357 pages
...medium A 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 per L along... | |
| William Barlow (of Muswell Hill.) - 1885
...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
...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 per L along... | |
| Richard Dennis Hoblyn - Medicine - 1887 - 806 pages
...fore-finger ; the finger usually employed in pointing at any object. INDEX OF REFRACTION. This is the **ratio of the sine of the angle of incidence to the sine of the angle of** refraction when a ray of light passes from a vacuum into any medium. INDIA-RUBBER, VULCANIZED. Caoutchouc... | |
| Alfred Payson Gage - Physics - 1888 - 353 pages
...3. The quotient (in this case f = 1.33+ ) obtained by dividing the sine of the angle of incidence by **the sine of the angle of refraction is called the index of refraction.** It can be proved to be the ratio of the velocity of the incident to that of the refracted light-waves.... | |
| Engineering - 1891
...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 of the... | |
| Edwin Herbert Hall, Joseph Young Bergen - Digital images - 1891 - 388 pages
...sine of r, the angle of refraction. The general law of refraction may, then, be stated as follows: The **ratio of the sine of the angle of incidence to the sine of the angle of refraction is** a constant quantity, for any two given adjoining media, and is called the Index of Refraction for those... | |
| Edwin Herbert Hall - Physics - 1891 - 388 pages
...of r, the angle of refraction. The general law of refraction may, then, be stated as follows : The **ratio of the sine of the angle of incidence to the sine of the angle of refraction is** a constant quantity, for any two given adjoining media, and is called the Index of Refraction for those... | |
| Henry Smith Carhart, Horatio Nelson Chute - Physics - 1892 - 382 pages
...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... | |
| Howard Forde Hansell, James H. Bell - Eye - 1892 - 231 pages
...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.... | |
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