 | 1851 - 716 pages
...0.259 sin. 60° 0.866 7= = *• and ° ' = = * ; that is' the sine "STnTTl?5= O94 = • sin. 40° 30' of the angle of incidence is to the sine of the angle of refraction : : 4 : 3. The index of refraction, four thirds, answers for the case where the ray passes... | |
 | John Gummere, Ezra Otis Kendall - 1854 - 484 pages
...of refraction changes with a change in the angle of incidence. The law of this change is such that the sine of the angle of incidence is to the sine of the o angle of refraction in a constant ratio, which is called the index of refraction. Thus if I be the... | |
 | Francis Bacon - 1857 - 880 pages
...According to the common use of language, it is a fact and not a theory that in ordinary refraction the sine of the angle of incidence is to the sine of the angle of refraction in a given ratio. But the observations on which this statement is based, and the statement... | |
 | Johann Georg Heck - 1860 - 332 pages
...0.866, 0.649. Constructing the above proportions we have sin. 15° 0.259 sin. 60° 0.866 that is ' the sine of the angle of incidence is to the sine of the angle of refraction : : 4 : 3. The index of refraction, four thirds, answers for the case where the ray passes... | |
 | Samuel Haughton - 1867 - 316 pages
...refracting surface, on passing through that surface it undergoes a deviation, determined by the law that the sine of the angle of incidence is to the sine of the angle of refraction in a constant ratio. On performing this experiment with common, or white light, it is found... | |
 | Edward Nugent (C.E.) - 1868 - 294 pages
...incidence A c R, and DF the sine of the angle of refraction i) c s. It therefore follows that from air into water the sine of the angle of incidence is to the sine of the angle of refraction as 1'336 to 1, whatever be the slanting direction of the incident ray with respect to the surface. When... | |
 | John Henry Pepper - 1869 - 722 pages
...and water to measure 12 in., and the sine of the angle of incidence 16 in., it would follow that in water the sine of the angle of incidence is to the sine of the angle of refraction as i'336 to 1, or as nearly as possible i^ to 1. The number i -336, which expresses this ratio for water,... | |
 | Edward Nugent - 1870 - 304 pages
...incidence A c R, and DF the sine of the angle of refraction ]» c s. It therefore follows that from air into water the sine of the angle of incidence is to the sine of the angle of refraction as 1-336 to 1, whatever be the slanting direction of the incident ray with respect to the surface. When... | |
 | John Tyndall - 1870 - 92 pages
...the case of ordinary refraction. The ray which behaves thus is called the ordinary ray. In its case the sine of the angle of incidence is to the sine of the angle of refraction, or the velocity of light in air is to its velocity in the crystal, in the constant ratio... | |
 | John Tyndall - 1870 - 110 pages
...the case of ordinary refraction. The ray which behaves thus is called the ordinary ray. In its case the sine of the angle of incidence is to the sine of the angle of refraction, or the velocity of light in air is to its velocity in the crystal, in the constant ratio... | |
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This amounts to the same with saying, that, in the case before us, the sine of the angle of incidence is to the sine of the angle of refraction in a given ratio. 
