Carhart, Henry S. (Henry Smith), 1844-1920 · Boston : Allyn and Bacon · leaf 268
ncidence andthe plane of refractioncoincide, and the ratio ofthe sines of the anglesof incidence and refraction is a constant. If the secondmedium is optically denser than the first, the refracted rayis deflected toward the normal, as in the figure. If theradius of the circle is unity, BF and CCr… … Fig. 118. 258 LIGHT. The constant ratio /-t is called the index of refraction.When light passes from a vacuum into any medium, thisratio is called the absolute index of refraction; but whenit passes from one medium into another, it is called therelative index. The relative index from medium a…
Physics
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
