The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 289
is the sine of 480 45, and whenever the ray in the water is at an angle of more than 480 45 it will not emergeinto the air, but be totally re-flected back into the water. (2) Critical angle of glass and air: sin r (oo°) is 1. index for , . . sin i 1glass is 1.52, whence = = 1 1.52sin 0.65789, which… … Fig. 157. Displacement of a Rayof Light in Traversing an Objectwith Plane Faces. This figure is to show that while thereis no angular deviation of a ray of lightin traversing a dense medium with planefaces, there is displacement; but the em-erging ray (r) is parallel with the enteringray (*). Air…
Microscopy · Microscopy -- Technique
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