 | Mary Somerville - 1834 - 390 pages
...elegant law, discovered by Sir David Brewster, ' That the tangent of the polarizing angle for any medium is equal to the sine of the angle of incidence divided by the sine of the angle of refraction of that medium.' Whence also the refractive power even of an opaque body is known when its polarizing... | |
 | Mary Somerville - 1834 - 484 pages
...elegant law, discovered by Sir David Brewster, ' That the tangent of the polarizing angle for any medium is equal to the sine of the angle of incidence divided by the sine of the angle of refraction of that medium.' Whence also the refractive power even of an opaque body is known when its polarizing... | |
 | David Brewster - 1841 - 432 pages
...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 of incidence divided by the sine of the angle of retraction. (36.) By this method, which is very simple in practice, \ve may readily measure the refractive... | |
 | Mary Somerville - 1849 - 568 pages
...elegant law. discovered by Sir David firewater, "That the tangent of the polarizing angle for any medium is equal to the sine of the angle of incidence divided by the sine of the angle of refraction of that medium." Whence also the refractive power even of an opaque body is known when its polarizing... | |
 | Archibald Tucker Ritchie - 1850 - 648 pages
...elegant law, discovered by Sir David Brewster : ' that the tangent of the polarizing angle for any medium is equal to the sine of the angle of incidence, divided by the sine of the angle of refraction of that medium ;' whence also the refractive power even of an opaque body is known, when its polarizing... | |
 | William Phillips - 1852 - 732 pages
...ratio depending only on the medium into which the refraction takes place, and the nature of the light. The sine of the angle of incidence divided by the sine of the angle of refraction is denoted by the quantity /*. This quantity is called the refractive index of the medium. 241. In... | |
 | Stephen Watson Fullom - 1858 - 334 pages
...Brewster, and laid down in the simple law — that the tangent of the polarizing angle for any medium is equal to the sine of the angle of incidence divided by the sine of the angle of refraction of that meridian. The subject of polarization has largely occupied the scientific world, and the interesting... | |
 | William Chauvenet - 1863 - 764 pages
...is called the index of refraction for that medium. This index is always an improper fraction, being equal to the sine of the angle of incidence divided by the sine of the angle of refraction. 4th. When the ray passes from one medium into another, the sines of the angles of incidence and refraction... | |
 | William Chauvenet - 1864 - 720 pages
...is called the index of refraction for that medium. This index is always an improper fraction, being equal to the sine of the angle of incidence divided by the sine of the angle of refraction. 4th. When the ray passes from one medium into another, the sines of the angles of incidence and refraction... | |
 | John Henry Pepper - 1869 - 722 pages
...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 of incidence divided by the sine of the angle of refraction. By this method we may readily measure the refractive power of all bodies. If the body be solid, it... | |
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It may also be defined as the sine of the angle of incidence divided by the sine of the angle of refraction, as light passes from air into the substance. 
