The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 302
n it and theprincipal focus. If, on the other hand, I 0 be the objectbejond the centre of curvature, the rajs from it meeting themirror will form at o i, an inverted and smaller image. Bjplacing the object nearer the mirror, between it and the prin-cipal focus, an image erect and greatlj magnified… … How will diverging rays incident on a concave mixTor be reflected ? Whatis said of images formed by concave miiTors ? Illustrate this by Fig. 235.If I 0 be the object, where and what kind of image will be formed ?What wonderful phenomena does this explanation of the properties of the con-cave…
Physics
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