Critical Angle

Definition: Critical Angle

Critical Angle

Noun

1. The smallest angle of incidence for which light is totally reflected.

Specialty Definition: Critical Angle

Domain	Definition
Mining	A. See:stalling angle b. The least angle of incidence at which there is total reflection when an optic, acoustic, or electromagnetic wave passes from one medium to another medium that is less refractive. CF:total reflection c. The angle at which a ray of light in passing from a dense medium, such as a gemstone, into a rarer medium, such as air, is refracted at 90 degrees to the normal. Any rays reaching the interface at angles greater than the critical angle are unable to pass into the rarer medium and are totally reflected. d. The angle of incidence at which refracted light just grazes the surface of contact between two different media. e. The angle of refraction r for which sin r = 1/n, where n is therefractive index of a transparent material. CF:law of refraction. (references)
Source: compiled by the editor from various references; see credits.

Specialty Definition: Critical angle

Critical angle: In geometric optics, at a refractive boundary, the smallest angle of incidence at which total internal reflection occurs.

Note 1: The angle of incidence is measured with respect to the normal at the refractive boundary.

Note 2: The critical angle is given by sin^-1(n₂/n₁) where θ_c is the critical angle, n ₂ is the refractive index of the less dense medium, and n ₁ is the refractive index of the denser medium.

Note 3: The incident ray is in the denser medium.

Note 4: If the incident ray is precisely at the critical angle, the refracted ray is tangent to the boundary at the point of incidence.

Source: from Federal Standard 1037C and from MIL-STD-188

Crosswords: Critical Angle

English words defined with "critical angle": Angle of total reflection. (references)

Specialty definitions using "critical angle": conical wave ♦ head waves ♦ refracted wave ♦ total reflectometer ♦ von Schmidt wave. (references)

Modern Translation: Critical Angle

Language		Translations for "critical angle"; alternative meanings/domain in parentheses.
Greek		κρίσιμη γωνία, οριακή γωνία. (various references)

Hungarian		teljes visszaverődési szög. (various references)

Japanese Kanji		危険�'度 . (various references)

Japanese Katakana		きけ�"かくど. (various references)

Pig Latin		iticalcray angleay
Source: compiled by the editor from various translation references.

Anagrams: Critical Angle

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-c-c-e-g-i-i-l-l-n-r-t"
	-1 letter: anticlerical, interglacial.
	-3 letters: acierating, carnallite, catcalling, lacerating, lateraling.
	-4 letters: accreting, allegiant, altricial, anaclitic, analgetic, angelical, antiglare, argillite, articling, caecilian, cartilage, cellaring, circinate, galenical, genitalia, genitalic, laciniate, lariating, recalling, retailing, tillering.
	-5 letters: acentric, actiniae, aerating, agential, alerting, alginate, allanite, allergic, allergin, alliance, altering, analcite, ancillae, angelica, antalgic, argental, argentic, arillate, calcanei, canaille, canaller, canticle, carcanet.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

Critical Angle

Definition: Critical Angle

Critical Angle

Noun

Specialty Definition: Critical Angle

Mining

Specialty Definition: Critical angle

Crosswords: Critical Angle

Modern Translation: Critical Angle

Greek

Hungarian

Japanese Kanji

Japanese Katakana

Pig Latin

Anagrams: Critical Angle

Scrabble® Enable2K-Verified Anagrams

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