angle of refraction


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an·gle of re·frac·tion

the angle that a ray leaving a refracting medium makes with a line drawn perpendicular to the surface of this medium.

angle of refraction

Etymology: L, refringere, to break apart
the angle that a refracted ray of light makes with a line perpendicular to the refracting surface at the point of refraction. Also called refracting angle.

an·gle of re·frac·tion

(anggĕl rē-frakshŭn)
Angle that a ray leaving a refracting medium makes with a line drawn perpendicular to the surface of this medium.

angle of refraction

The angle formed by a refracted ray of light with a line perpendicular to the surface at the refraction point.
See also: angle