Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 333
eof thin glass to oneprong of a tuning-fork and thenvibrating it, justtouching the sur-face. The wavesmove forward inthe direction shownby the arrow, buton reaching theshallower waterover a piece of glasslying on the bottomof the vessel, their speed is diminislied (§§ 181, 183) andthe wave-fronts… … 368. The Laws of Refraction. In Fig. 367 GD is a ray incident on the surface ofglass, DE is the correspondingrefracted ray, and i and r arethe angles of incidence andrefraction, respectively. Withcentre D describe a circle, cut-ting the incident ray at G andthe refracted ray at E. GHand EF are…
Physics
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