| Colin MacLaurin - Calculus - 1801
...given medium thatactsupon itin parallel linesperpendicular to the planes that terminate the medium, **the sine of the angle of refraction is to the sine of the angle of incidence** in an invariable ratio, and the velocity with which the rajr emerges at E is to the velocity of itsincidenceat... | |
| John Ewing - Physics - 1809 - 538 pages
...is, the velocity of the ray of light in the rarer medium is to its velocity in the denser medium, as **the sine of the angle of refraction is to the sine of the angle of incidence.** QED Cor. As the difference between the velocities of a ray, moving in any two given mediums, must always... | |
| Society for the Diffusion of Useful Knowledge (Great Britain) - 1829
...corresponding angle of refraction at the surface R' S'. By making the following proportion, therefore — as **the sine of the angle of refraction is to the sine of the angle of incidence,** so is unity to the index of refractive power^-that is, dividing the sine of the angle of incidence... | |
| Sir David Brewster - Light - 1831 - 383 pages
...preceding methods, we may determine the index of refraction for any prism by the following analogy. As **the sine of the angle of refraction is to the sine of the angle of incidence,** so is unity to the index of refraction ; or the index of refraction is equal to the sine of the angle... | |
| Humphrey Lloyd - 1831
...formed by lines drawn from the centre of the earth to the extreme points of the refracted ray, that **the sine of the angle of refraction is to the sine of the** apparent zenith distance, as the radius of the earth to the radius of the exterior surface of the homogeneous... | |
| Sir David Brewster - Microscopes - 1833 - 95 pages
...preceding methods, we may determine the index of refraction for any prism by the following analogy. As **the sine of the angle of refraction is to the sine of the angle of incidence,** so is unity to the index of refraction ; or the index of refraction is equal to the sine of the angle... | |
| William Mackenzie - 1841
...or The relative index, then, of the separating surface of these two media is 1.0304. In other words, **the sine of the angle of refraction is to the sine of the angle of incidence, as 1 to** 1.0304. On similar principles, if we suppose an immediate passage of the ray from the aqueous humour... | |
| John Johnston - Chemistry - 1842 - 480 pages
...angles to PP . Then may la be considered the sine of the angle ofincidence, and EC the «'••« **of the angle of refraction. The second law denotes...being once determined, each ray must conform itself to** H, so that any anele of incidence being given, the direction of the retracted ray may be foretold.... | |
| John Johnston - Chemistry - 1843 - 480 pages
...E, where the course of the ray cuts the circle, let fall la, EC at right angles to PP'. Then may la **be considered the sine of the angle of incidence,...direction of the refracted ray may be foretold. Thus, if** ?'C be a second ray incident at C, of which ib is the sine of the angle of incidence, the ray will... | |
| Sir David Brewster - Optics - 1844 - 418 pages
...preceding methods, we may determine the index of refraction for any prism by the following analogy. As **the sine of the angle of refraction is to the sine of the angle of incidence,** so is unity to the index of refraction ; or the index of refraction is equal to the sine of the angle... | |
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