Lockyer, Norman, Sir, 1836-1920, Seabroke, G. M. (George Mitchell), 1848-1918 · London, Macmillan and co. · leaf 106
e appli-cation of this principle. We first take two similar prismsarranged as in Fis^. 43. The last throusjli which thelight passes corrects the deviation and dispersion of thefirst. We then take two prisms, one of crown glassand the other of flint glass, and since the dispersion ofthe flint is… … Fig. 43.—Decompo.sition and Keconipositioii of Light by Two Prisms. of the prisms are different, we may expect to findthat we shall get a larger amount of deviation from thecrown-glass prism than from the other. If then a ray of light be passed through the crown-glass prism, w^e get the dispersion…
Astronomy · Telescopes
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