A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 607
Fig. 531.—Total reflection at surface of glass plate. F.cut o\l when BCE is the critical angle for glass and air. Hencesin BCE = l//ig. 582 LIGHT CIIAP. Now at B the ray passes from the liquid to glass. From p. 579 wesee that ^ ^ sin ABF ^ sm ABF jxw sin GBC •sin ABF = sin BCE ■it,., sin ABF. i … Tho Pulfrich refractometer. Hence the index of refraction for the liquid is the sine of the angleABF between the incident ray and the normal when the light is justcut off. It is determined by finding two symmetrical positions forextinction and taking half the angle between the two positions. The…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
