 | Mary Somerville - 1834 - 484 pages
...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 - 390 pages
...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 N. Griffin - 1838 - 206 pages
...the normal to the surface at the point of incidence, have a ratio depending only on the media between which the refraction takes place, and the nature of...light. The sine of the angle of incidence divided bv the sine of the angle of refraction, is denoted by the quantity >i. which is constant therefore... | |
 | David Brewster - 1841 - 432 pages
...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
...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
...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... | |
 | Stephen Watson Fullom - 1858 - 334 pages
...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... | |
 | Ireland commissioners of nat. educ - 1861 - 310 pages
...is tangent to the angle of polarization :" and "the tangent of the angle of polarization is equal to the sine of the angle of incidence, divided by the sine of the angle of refraction corresponding to the given medium." This enables us to ascertain the angle of refraction, belonging... | |
 | William Chauvenet - 1864 - 720 pages
...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
...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. 
