Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 620
s. When the wheel which had 720teeth made 12.6 revolutions per second, the light was eclipsed. Whatvalue does this give for the velocity? Ans. 3.143(10)10 cm. / sec. CHAPTER XXXVII. REFLECTION AND REFRACTION. 546. Modification of Waves at the Boundary of Two Media. — The laws governing refraction… … A Fig. 416. AA /Fig. 416) is the interface between two media, and that0 is a source of light-waves in the medium in which thevare propagated with the greater velocity. When the wavefront reaches the point a. this point may be regarded as acenter of disturbance from which, by Huyghenss Principle,a…
Physics
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