e of the lens being 30 inches aud the plane face beingexposcdto the rays? Ans. 60 inche*. FORMATION OF IMAGES BY LENSES. 115 LECTURE XXI. FORMATION OF IMAGES BY LENSES, MAGNIFYINGPOWER OF LENSES, SPHERICAL ABERRATION,CHROMATIC ABERRATION. 278. Images are formed by lenses in precisely the same… … .4 jB is an object onone side of the lens,L M, and further re-moved from it than itsprincipal focus, F. Allthe rays that emanatefrom A, SLS A e a,A ca,Ada, are made toconverge to a focus, a,•where they paint animage of the point A.Similarly all the raystliat proceed from B are united in the point…
Physics
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