Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
the ray enters and leaves the prism, willbe equal. Effects of a plane-glass.—For the effects of a plane-glass uponan oblique ray of light, see Figs. 24 and 25 (397-8). ^07- Figure 34.—The course of light through a sphereof glass or spherical lens.—Let AB repi-esent three parallel raysof light… … lens, will be refracted toward the perpendicular. From the point Tdescribe the arcs, as shown, one of which passes through the centre ofthe circle; then draAV TF, in such a direction that the sine of the angleof incidence, ATH, will be to the sine of the angle of refraction, FTL,as 1.5 is to 1; or,…
Physics · Astronomy
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
