Books Books 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 22
by David Brewster, Alexander Dallas Bache - 1833 - 95 pages ## The Microscope and Its Revelations, Volumes 1-2

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)... ## A Student's Manual of a Laboratory Course in Physical Measurements

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... ## Sunshine

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... ## Wilson's Cyclopedic Photography: A Complete Handbook of the Terms, Processes ...

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... ## Light and Electricity: Notes of Two Courses of Lectures Before the Royal ...

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.... ## Physics for Students of Medicine

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... ## Manual of Experimental Physics for Secondary Schools

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 %... ## Manual of Experimental Physics for Secondary School

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 %... ## Manual of Experimental Physics for Secondary Schools

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 %... 