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)
nce of the object isshown by the position of the index-arm on the graduated arc. Tlietelescope, T, is to facilitate accurate observation. Reflection at Curved Surfaces. 381. Figure 13.—Convex spherical mirrors illustratedby plane mirrors.—A convex mirror may be considered as madeup of an indefinite… … t Ik direction of tlie rays of light which Fto i:i fall 111)011 them, will be easily under-stood. Let the two arrows, F, be paralkdrays; the one on the right falling uponthe mirror on the right, while the otherray falls upon the mirror on the left.Now, as the angles of incidence andreflection are…
Physics · Astronomy
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