A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 596
us.This is the conjugate case to (ii) and may be understood by imagin-ng ab to be the object in Fig. 516. AB will then be the image. (v) Object at the principal focus. u=f. v = oo . The image is at infinity. This is the conjugate case to (i).[f the object is at F (Fig. 511) the rays after… … Fig. 519.—Production of virtual image by concave mirror. On performing the geometrical construction given on p. 568, itwill be found that the rays after reflection are diverging ; the imageI therefore virtual at ab (Fig. 519). In this case 6C>BC, and hence:he image is enlarged. Also since v/u is…
Physics
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