Carhart, Henry S. (Henry Smith), 1844-1920 · Boston : Allyn and Bacon · leaf 274
along the surface OB.If the incident ray in the densermedium makes a greater anglewith the normal than LONii canno longer emerge into the secondmedium, but undergoes total internal reflection. Thus the ray 10 is totally reflected in the direction 01. (L ON is thecritical angle.) For a smaller… … /* = sin x 264 . LIGHT. Whence sin x = ~, P or the sine of the critical angle is the reciprocal of the indexof refraction. For water the critical angle is . .... 48° 27 40 For crown glass about 41° 10X For chromate of lead 19° 49 The total internal reflection of light is beautifully shownby…
Physics
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