What is the meaning of critical angle?

noun

  • The smallest angle of incidence for which light is totally reflected. .
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). critical angle. Retrieved September 22, 2026, from http://smartdefine.org/critical_angle/definitions/1244840
ChicagoWordNet. 2010. "critical angle" http://smartdefine.org/critical_angle/definitions/1244840 (accessed September 22, 2026).
HarvardWordNet 2010, critical angle, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/critical_angle/definitions/1244840>.
MLAWordNet. "critical angle" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/critical_angle/definitions/1244840>