A text-book of physics : with sections on the application of physics to physiology and medicine (1902)
Lehfeldt, Robert Alfred, 1868-1927 · London : E. Arnold · leaf 291
ause great distortion in the appearance of the objectslooked at. Two problems arise, (i) to find the position of theimage of a point, (ii) to find the size of the image of an object offinite size—this being made up of the images of all the pointsthat compose the object. With regard to the former,… … A be the source of light, on the axis acb; since the axis isa normal to the mirror, it must pass through the centre of thesphere, let this be c. Draw a ray ap and the normal cp, andmake the angle cpa = cpa ; then pa is the course of the rayreflected at p. It may be shown that, all the rays after…
Physics
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