Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 365
a concave sphericalmirror ; 6. a point on the principal axis at an infinite distance from themirror ; c. a point on the principal axis beyond the center of curvatureand at a finite distance from the mirror ; d. a point on the principal axisbetween the center of curvature and the principal focus ;… … 303. Introductory experiments. Experiment 1. —Into a darkened room admit a sunbeam so that itsrays may fall obliquely on the bottom of the basin (Fig. 250), and notethe place on the bottom where the edge of the shadow D E cast by the side of the basin D C meets the bottomat E. Then, without moving…
Physics
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