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 309
hat figure, ABrepresents the object. A pencil of rays, coming from A, isdeviated so as to appear to come from «, situated on a linedrawn from A to the optical centre of the lens O. A pencil,coming from B, is deviated so as to appear to come from 5, (302) What is the effect of n. divergent lens upon… … Fig 199. and is, as we see, smaller than the object, being nearer theoptical centre, and furthermore it is erect. Burning-glasses. 303. Rays of heat are subject to the same laws ofreflection and refraction as rays of light. When a beam ofsolar light falls upon a convex lens, there is not only a…
Physics
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