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 649
n in Fig. 577. Rotate the prism so that the images E and Fapproach us near as possible to the positions E and F. In this positionthe deviation is a minimum. Then place the pins at G and H in linewith E and F. Draw in the prism and the rays as before and measureth« angle D between EF and GH, and… … Fiu. 578.—Deviation produced by aprism. XLVI1I SPECTROMETER 625 Then for the position of minimum deviation i(A + D) % * /* = 2rt
Physics
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