Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 530
536. .Phenomenon of refraction.—Refraction is the deflection or bendingwhich the rays of Hght experience in passing obliquely from one medium toanother : for instance, from air into water (fig. 478). We say obHquelybecause if the incident ray is perpendicular to the surface separating the twomedia,… … the direction OH whichHght takes in the secondmedium; and of theangles SOA and HOB,which these rays formwith the line AB, atright angles to the sur-face which separates thetwo media, the first isthe angle of incidence,and the other the angleof refraction. Accord-ing as the refracted rayapproaches…
Physics
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