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Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)

Johnson, Frank G., 1835- · Chicago, A.H. Andrews · leaf 212

An illustration from Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families, 1878, leaf 212
faces. 370. Figure 3.—Reflection of diverg-ing rays.—In accordance Avith the second lawof reflection (368), diverging rays before reflectionwill be equally div-ergent after reflection, as shownby the diagram, in which A is the plane mirror. Eeflection from a plane mirror, therefore,changes the… … 206 OPTICS. 371. Figure 4.—Reflection of converging rays.—In ac-cordance Avitli the same law, converging rays b-^fore reflection will con-verge after reflection. The degree of convergence before and afterreflection will be the same ; and the reflected rays will meet at a pointas far in front of the…

Physics · Astronomy

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