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Monday, 29 October 2007

refraction. The bending of light rays. The deflection from a straight path suffered by a ray of light as it passes obliquely from a medium of one op­tical density to another medium of different optical density, as from air into water and from air into a gem-stone. The degree of bending is re­lated to the change in the velocity of light and the angle at which the light impinges. See anisotropic, isotropic,

ANOMALOUS DOUBLE REFRACTION, POLARISCOPE, REFRACTIVE INDEX, ANGLE OF REFRACTION, OPTICALLY DENSE.

 
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