Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 34
, for they are too>close together, their angular divergence being only |°. But by PATH OF LIGHT TIIKOIOII A PRISM 9 measurement it will be found that E F makes, with tke normal atF, an angle <// of 25J°, and for the blue ray an angle of 26|°. It should be remembered, however, that if the… … Fig. 5.—Diagram of deviation of luminous ray by a prism. This ray E F now becomes the incident ray on the surface A C ;and as the angle it makes with the normal at F is known, and asthe refractive indices remain the same, we can, by (problem) v. 2,find the angles of refraction for each colour. If…
Microscopy
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