Gilley, Frank M · Boston, Allyn & Bacon · leaf 281
C, as the con-tinuation of the re-flection of AB. Markthe edge of the mir-ror on the paper.Draw a perpendicular,BN. What name hassuch a line in physics ?Cut with a sharpknife along AB andBC. Crease the paper at BN, and compare the angle of inci-dence, ABN, with the angle of reflection, NBC. Print a… … Fig. 239. 304. The Brightness of a Reflection depends upon the angleat which the light strikes themirror. Hold a candle over a cupof water and look almost perpen-dicularly down at the reflection.Holding the candle at the samedistance from the cup, but almoston a level with the water, view the…
Physics
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