Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 662
whole wave-length behind that from c.Then, dividing up the spaces ab and cd into pairs of pointsrelated in the same way as a and <?, it follows that the effect ZBATIXGS. 651 of the limited wave-fronts ah and cd is to prodnee light at p.Similarly, the light sent by each consecutive pair of… … the wave-length the resulting spectrum will be arrangedwith the violet deviated least, and the red most. If the direction ap be chosen so that acJ is equal to 2X. 3X-etc., similar spectra of the 2d. 3d. or higher orders are formedon each side of the central image, though the purity of thosebeyond…
Physics
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