What is the definition of Critical angle? | Dictionary.net

CRITICAL ANGLE

\kɹˈɪtɪkə͡l ˈaŋɡə͡l], \kɹˈɪtɪkə‍l ˈaŋɡə‍l], \k_ɹ_ˈɪ_t_ɪ_k_əl ˈa_ŋ_ɡ_əl]\

Definitions of CRITICAL ANGLE

2006 - WordNet 3.0
2011 - English Dictionary Database
1916 - Appleton's medical dictionary

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the smallest angle of incidence for which light is totally reflected

2006 - WordNet 3.0
By Princeton University

the smallest angle of incidence for which light is totally reflected

2011 - English Dictionary Database
By DataStellar Co., Ltd

Syn.: limiting a. The greatest a. which a ray of light passing from a denser to a rarer medium can make with the perpendicular to their surfaces of contact without undergoing total reflection.

1916 - Appleton's medical dictionary
By Smith Ely Jelliffe

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