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 307
incipal focal distance, the image will in-crease, it will become erect, and furthermore it will be virtual. Thecourse of the rays in this case is shown in Fig. 197. Here, ab is theobject, and AB is its image, which can only be seen by lookingthrough the lens. In this case the lens becomes what is… … Fig. 106. The phenomena just described ma}- be observed by looking througha convex lens at the letters on a printed page. When the letters areat a short distance from the lens, they are magnified and erect; r liii
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
