Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 304
inclined to the axis, the corresponding When the radiant is at a distance greater than the principal focal distance, whereis the conjugate focus? When the radiant approaches the lens? When at the prin-cipal focus? If still nearer the lens? Suppose the radiant not on the axis? LENSES. 301 focus will… … jyo. Formation of Images by Convex Lenses. 301. If an object be placed in front of a lens, each pointof it may be regarded as a radiant sending out a pencil ofrays. Each pencil is brought to a focus somewhere behindthe lens. The assemblage of these foci makes up a pictureof the object, which is…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
