 | John Charles Duncan - Astronomy - 1926 - 484 pages
...angles of incidence and reflection are equal. The law of refraction, known as Snell's law, states that the ratio of the sines of the angles of incidence and refraction is a constant which depends on the color of the light and the nature of the two media; that is, sin i... | |
 | Andrew McLeish - Geology - 1992 - 320 pages
...the refractive index (RI) of the medium which the beam enters. Since this velocity ratio is equal to the ratio of the sines of the angles of incidence and refraction the refractive index is given as: sin / refractive index (RI) = ______ sin r microscope uses two sheets... | |
 | R. S. Woolhouse - Philosophy - 1994 - 536 pages
...the fact that a light ray takes the most determined path explains why, at the point of refraction, the ratio of the sines of the angles of incidence and refraction are constant. Since in general nature acts in the most determined ways, light rays behave in the most... | |
 | Alistair Cameron Crombie - Science - 1995 - 756 pages
...rules were worked out for determining focal lengths and apertures. The true law of refraction, that the ratio of the sines of the angles of incidence and refraction is a constant depending on the media concerned, was discovered in 1601 by Harriot and rediscovered a few... | |
 | Milton Katz - Science - 2002 - 332 pages
...the refractive indices of optical media are all greater than one. C n = — v Snell's law states that the ratio of the sines of the angles of incidence and refraction of a ray is equal to a constant. This constant is equal to the ratio of the refractive indices of the... | |
 | Ray Tricker - Science - 2002 - 344 pages
...of refraction of a ray of light crossing the boundary between two media. This paper postulated that the ratio of the sines of the angles of incidence and refraction of a ray shall always be constant. The refracted ray will always lie in the same plane as the incident... | |
 | Mario Bertolotti - Science - 2004 - 346 pages
...respectively, (b) A light beam reflected and refracted by a piece of glass. the first time the principle that the ratio of the sines of the angles of incidence and refraction depends on the medium through which the light travels. Already in the Greek world, people knew that... | |
 | 1861 - 968 pages
...fathom-intervals are exaggerated nearly in the ratio of 6 to 8 or 3 to 4 : — that is, sensibly in the ratio of the sines of the angles of incidence and refraction for water. This is only true for small angles of incidence, that is, for the lower fathoms ; for, in... | |
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... that the ratio of the sines of the angles of incidence and refraction is constant for refraction in the same medium, was effected by Snell and Descartes. 
