Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 332
^ In Fig. 366 is reproduced apiiotograph of waves on the surface of water. These waveswere produced byattaching a pieceof thin glass to oneprong of a tuning-fork an.d thenvibrating it, justtouching the sur-face. The wavesmove forward inthe direction shownby the arrow, buton reachip-g theshallower… … Fia. 366.—Plane waves on passing into snallower water arerefracted as sliown by the arrow, (rhotojfraph by J. H.Vincent.) 322 REFRACTION
Physics
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