Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 277
FlG. 190. — Virtual image formed by aconvex lens. 262 PHYSICS OF THE HOUSEHOLD … FIG. 191. — Virtual image formed bya concave lens. come from the principal focusF. The ray BP passes throughthe center of the lens in astraight line. These rays di-verge after passing throughthe lens and thus cannot forma real image. If, however,they fall on the eye of an ob-server they appear to…
Physics · Home Economics
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