Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
546. Circular waves re-flected from a plane.—If a circular wave fall upon a plane sur-face at right angles to it, after re-flection it has the same curvature,with the curve reversed; the same as it would have been had the waveoriginated from a point on the opposite side of the plane, and as farback…
Physics · Astronomy
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