Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 580
e distinctness of the miage the general rules for convexlenses apply In order to lessen dispersion, lenses have been constructed of diamond,of ruby, and of other precious stones, which for a small amount of dispersionhave a great degree of refrangibility. A drop of water or of Canada balsamin a… … Fig. 547- observer. Thus, if AB is the object, and O the observers eye (figs. 546, 547),the apparent magnitude of the object is the angle AOB contained by twovisual rays drawn from the centre of the pupil to the extremities of the object.In the case of objects seen through optical instruments, the…
Physics
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