The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 304
298 REFRACTION OF LIGHT. onuch diminished in size.—Let B I, Fig. 237, be an objectplaced before the convex mirror, M M, whose virtual focus is Fig. 237. … at E, and centre of convergency at C. The rays proceedingfrom B will be reflected from the convex surface to the eye atE, as though proceeding from a point, 6, behind the mirror; inlike manner those from I will appear to proceed from i, and soof all the intermediate points between B and I, thus…
Physics
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