Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 742
Fig. 473. has reached Ce. Likewise, in the same time, let the disturb-ance in the wave-front at pt have moved to p\ in the air andto o and e in thecrystal. Then, byHuyghenss principlethe new wave-frontscorresponding to pp2will be the envelopesof the elementary dis-turbances, which inthis case are… … Fig. 474. 732 POLARIZATION. attention to a small pencil of light incident in the direction ip, it is seen to be divided into two refracted pencils, the ordinary po, which is perpendicular to the wave-front in theplane of incidence, and obeying in every respect the ordinarylaw of refraction, and the…
Physics
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