Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 118
tion we shallfind that it is also reflected nearly to f, and so on withall other parallel rays falling on the mirror ; and thispoint, F, is therefore said to be the focus of the mirror. CHAP. VII.] THE REFLECTION OF LIGHT. 95 If now the rays, instead of falling parallel on the mirror,as if they… … Fig. 51. —Fonuatioii of Image of Caudle by Ketlectiou. represented by the dotted line ; or, in other words, theangles of incidence become reduced, and so the angles ofreflection will also be reduced, and the focus of the raysfrom s will approach the centre of the mirror, and beat s ; just so it…
Astronomy · Telescopes
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