| Standardization field | Electrical engineering
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| Technical committee | BAS/TC 30- Electric cables |
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| Term (EN) | critical angle |
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| Definition (EN) | 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) |
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| Term (FR) | |
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| Definition (FR) | |
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| Term (DE) | |
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| Definition (DE) | |
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| Term (BS) | |
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| Definition (BS) | |
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| Term (HR) | |
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| Definition (HR) | |
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| Term (SR) | kritični ugao |
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| Definition (SR) | Najveći upadni ugao za koji talas prostirući se u homogenom medijumu relativno visokog indeksa prelamanja pada na graničnu površinu s medijumom nižeg indeksa prelamanja, a za koje je prelamanje moguće.
Napomena — Kada se svjetlost prostire kroz homogeni medijum relativno visokog indeksa prelamanja (nhigh) na ravnu površinu sa homogenim materijalom nižeg indeksa prelamanja (nlow), kritični ugao je definisan sa:
arcsin (nlow / nhigh) |
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| Date | 2017-08-09 |
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| Standards | BAS IEC 60050-731:2017 |
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