Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 88
than that of the original pulse. incident, The original pulse is called the incident; that transmit- rcflTcte^p^sts. ted into tlie second medium, the refracted; and that driven back through the original medium, the reflected pulse. Ech0 To an ear properly situated, the reflected pulse will be… … §72. To find the law which regulates the direction of Dircctionoftnethe reflected pulse; let A If be a _. ^ TmS portion of the front of an incidentspherical pulse, so small that it maybe regarded as a plane. Draw If A\Ar iVand A 0, normal to the pulse,and suppose the latter, movingin the direction…
Mechanics · Acoustics · Optics
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