Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 746
defects by cutting the ends of theprism PQ and PS so that the lightenters and leaves them normally. By giving the section plane PS aposition perpendicular to the opticaxis, and cementing the two halveswith linseed oil, which has an indexof refraction identical with the extra-ordinary index of… … d D Fig. 478. 631. Double Image Prisms. — By using a prism of a doublerefracting substance, two images of a bright source of light may be obtained with thetransmitted beams polarizedin planes at right angles. 1 —— >—— 3 Q > D ployed, it is cut so that therefracting edge is parallel tothe…
Physics
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