Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 335
wlight, such as is obtained on burning sodium in a Bunsen orspirit flame. Indices of Refraction Crown-glass .1.514 to 1.560 Hydrochloric acid (at 20° C.).1.411 Flint-glass .1.608 to 1.792 Nitric acid (at 20° C.) 1.402 Rock salt 1.544 Sulphuric acid (at 20 C).. .1.437 Sylvine (potassium… … 370. Refraction Through a Plate. A plate is a portion of amedium bounded by two parallel planes. In Fig. 368, PQRS shows the course of a ray of lightthrough a plate of glass. It is re-fracted on entering the plate andagain on emerging from it. Since thenormals at Q and R are parallel, theangles…
Physics
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