Church, A. H. (Arthur Herbert), 1834-1915 · London : Cassell · leaf 53
na clear. Two stones dropped at some distance apart into the water of a still pond will generate two sets of circular waves. At many points the waves of one set must cross the waves of the other. At some of these points the crests of the two crossing waves will coincide, and the waves will be… … point I ; we know that a large part will be reflected at the same angle towards R. But tlie rest of the beam enters the film and is refracted towards the normal to F, whence at all angles, save that of total internal reflection, a portion leaves the film finally. But the remainder of the refracted…
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Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
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