CRITICAL ANGLE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

The smallest angle of incidence for which light is totally reflected

Classified under:

Nouns denoting two and three dimensional shapes

Hypernyms ("critical angle" is a kind of...):

angle of incidence; incidence angle (the angle that a line makes with a line perpendicular to the surface at the point of incidence)

Credits

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