ld at a distance a from the eye. The angle subtended by the image is pql(a + v), that subtended bythe object when at the least distance of distinct vision is PQJD. Hence m = %—• = , PQ a + v u a + v Yf If as above we suppose the image to be at the least distance ofdistinct vision, then t Again… … But 96. Simple Microscope Lenses. The simple micro-scope has been described as though it consisted of a singleconvex lens; in some cases combinations of two convex lensesare employed, the deviation of the rays necessary to givethe magnification is divided between the two. Wollastonsdoublet is…
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