A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 196
nother is called refraction. The amount of the bending, or refraction, which a rayof light suffers at any surface depends partly upon the two substances which meet atthis surface, and partlyupon the angle, i (Fig. 117),which the ray makes with aline NN, which is at rightangles with the surface… … 174 PHYSICS. liquid, the course of the ray is changed at the surface insuch a way that the angle r, which it makes with NN in-side the solid or liquid, is smaller than the angle i. The angle i in Fig. 117 is called the angle of incidence.The angle r is called the angle of refraction. If the ray…
Physics
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