Definitions for critical angle
This page provides all possible meanings and translations of the word critical angle
the smallest angle of incidence for which light is totally reflected
The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one
The smallest angle of attack of an airfoil at which lift suddenly decreases and drag suddenly increases
The smallest angle of a ramp or stairs considered uncomfortable or unsafe
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"critical angle." Definitions.net. STANDS4 LLC, 2015. Web. 30 Nov. 2015. <http://www.definitions.net/definition/critical angle>.