Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 116
flectors.—Smooth, even surfaces, like the surfaceof still water, polished glass, or polished metal, reflect lightregularly (§ 101). Transparent reflectors are not convenient for ordinaryuse: partly because light which we do not want may comethrough them from behind; partly because they… … large angle with the line 3IX, which is the normal to the surface ofthe glass. Observe the comparative brightness of the flame itself, and itspicture or image, seen by reflection from 31. Xotice with whatdegree of clearness objects back of 31, as, for instance, points on thewall WW, can be seen…
Physics
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