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
| William Benjamin Carpenter, William Henry Dallinger - 1891 - 1210 pages
...the other medium the refracted ray. The incident and refracted rays are always in the saine plane. 2. **The sine of the angle of incidence divided by the sine of the angle of refraction** is a constant quantity for any two particular media. When one of the media is air (accurately a vacuum)... | |
| Wallace Clement Sabine - 1893 - 154 pages
...is bent toward the perpendicular to the surface. For the same substances and the same colored light, **the sine of the angle of incidence divided by the sine of the angle of refraction** is a constant. It is called the index of refraction, and is usually denoted by the letter «. The index... | |
| Amy Johnson - 1894 - 582 pages
...deal, eg 98 '2 °/0 of rays incident normally upon water. 20. The law of refraction is thus stated : " **The sine of the angle of incidence divided by the sine of the angle of refraction** is a constant quantity." We obtained the sines of these angles. This constant quantity is called the... | |
| Edward Livingston Wilson - 1894 - 536 pages
...divide o' m' by n' rf, we will have in both cases the same quotient ; or, as it is generally expressed, **the sine of the angle of incidence divided by the sine of the angle of refraction** is a constant, whatever the angle of incidence may may be. This constant quota is called. the index... | |
| John Tyndall - 1895 - 220 pages
...the line np will be the sine of the angle of refraction. 117. Hence the ill-important optical law — **The sine of the angle of incidence divided by the sine of the angle of refraction** is a constant quantity. However these angles may vary in size, this bond of relationship is never severed.... | |
| Alfred Daniell - 1896 - 496 pages
...directions are. The angle of reflexion is equal to the angle of incidence : and the sine of the angle **of refraction is equal to the sine of the angle of incidence** multiplied by the index of refraction. If the incident light travel along a line Av O, at right angles... | |
| Fred Richardson Nichols, Charles Henry Smith, Charles Mark Turtin - 1899 - 364 pages
...angle X'BM' is the angle of refraction (from glass to air). The index of refraction is the quotient of **the sine of the angle of incidence divided by the sine of the angle of refraction;** therefore XM-=X'M' = the index of refraction from plate glass to air. What is your result ? Error %... | |
| Fred Richardson Nichols, Charles Henry Smith, Charles Mark Turton - 1901 - 364 pages
...angle X'BM' is the angle of refraction (from glass to air). The index of refraction is the quotient of **the sine of the angle of incidence divided by the sine of the angle of refraction;** therefore XM-+X'M' = the index of refraction from plate glass to air. What is your result ? Error %... | |
| Fred Richardson Nichols, Charles Henry Smith, Charles Mark Turtin - 1899 - 364 pages
...angle X'BM' is the angle of refraction (from glass to air). The Index of refraction is the quotient of **the sine of the angle of incidence divided by the sine of the angle of refraction;** therefore XM-sX'M ' = the index of refraction from plate glass to air. What is your result? Error %... | |
| Simon Henry Gage - 1899 - 272 pages
...rarer medium, and that taken by the ray in the denser medium. The relationship is expressed thus : **Sine of the angle of incidence divided by the sine of the angle of refraction** equals the inde.v of refraction. In the figures, _" -— index of refraction. Worked out completely... | |
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