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IEVref:731-03-23ID:
Language:enStatus: Standard
Term: critical angle
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Definition: the greatest angle of incidence for which a wave propagating in a homogeneous medium of relatively high refractive index strikes an interface with a medium having a lower refractive index, and for which refraction is just possible

NOTE – When light propagates in a homogeneous medium of relatively high refractive index (nhigh) onto a planar interface with a homogeneous material of lower index (nlow ), the critical angle is defined by :

arcsin (nlow / nhigh)


Publication date:1991-10
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