Carhart, Henry S. (Henry Smith), 1844-1920 · Boston : Allyn and Bacon · leaf 278
normal on entering a medium ofhigher refrangibility, and away from it when passing intoone of lower refrangibility, the path of a ray of homogeneous light through the prism may be such as LIEO. 1 is the point of incidence and E ofemergence. The precise pathof the ray throughthe prism and after rig.… … Fig. 127.
Physics
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