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. A Treatise on Optics - Page 22by David Brewster, Alexander Dallas Bache - 1833 - 95 pagesFull view - About this book
| 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 - 658 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
...may be shown by the similarity of triangles, or proved by projection, that the angle of refraction 6 **R n at the first surface is equal to BAF, half 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 - 570 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 - 700 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
...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... | |
| Ireland commissioners of nat. educ - 1861
...refraction 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 - 1863 - 778 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
...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... | |
| |