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- Fermat's_principle abstract "In optics, Fermat's principle or the principle of least time is the principle that the path taken between two points by a ray of light is the path that can be traversed in the least time. This principle is sometimes taken as the definition of a ray of light. However, this version of the principle is not general; a more modern statement of the principle is that rays of light traverse the path of stationary optical length with respect to variations of the path. In other words, a ray of light prefers the path such that there are other paths, arbitrarily nearby on either side, along which the ray would take almost exactly the same time to traverse.Fermat's principle can be used to describe the properties of light rays reflected off mirrors, refracted through different media, or undergoing total internal reflection. It follows mathematically from Huygens' principle (at the limit of small wavelength). Fermat's text Analyse des réfractions exploits the technique of adequality to derive Snell's law of refraction and the law of reflection.Fermat's principle has the same form as Hamilton's principle and it is the basis of Hamiltonian optics.".
- Fermat's_principle thumbnail Snells_law.svg?width=300.
- Fermat's_principle wikiPageID "37232".
- Fermat's_principle wikiPageRevisionID "593580189".
- Fermat's_principle hasPhotoCollection Fermat's_principle.
- Fermat's_principle subject Category:Calculus_of_variations.
- Fermat's_principle subject Category:Geometrical_optics.
- Fermat's_principle subject Category:Principles.
- Fermat's_principle type Abstraction100002137.
- Fermat's_principle type Cognition100023271.
- Fermat's_principle type Content105809192.
- Fermat's_principle type Generalization105913275.
- Fermat's_principle type Idea105833840.
- Fermat's_principle type Principle105913538.
- Fermat's_principle type Principles.
- Fermat's_principle type PsychologicalFeature100023100.
- Fermat's_principle comment "In optics, Fermat's principle or the principle of least time is the principle that the path taken between two points by a ray of light is the path that can be traversed in the least time. This principle is sometimes taken as the definition of a ray of light. However, this version of the principle is not general; a more modern statement of the principle is that rays of light traverse the path of stationary optical length with respect to variations of the path.".
- Fermat's_principle label "Fermat's principle".
- Fermat's_principle label "Fermatsches Prinzip".
- Fermat's_principle label "Principe de Fermat".
- Fermat's_principle label "Principe van Fermat".
- Fermat's_principle label "Principio de Fermat".
- Fermat's_principle label "Principio di Fermat".
- Fermat's_principle label "Princípio de Fermat".
- Fermat's_principle label "Zasada Fermata".
- Fermat's_principle label "Принцип Ферма".
- Fermat's_principle label "フェルマーの原理".
- Fermat's_principle label "費馬原理".
- Fermat's_principle sameAs Fermatův_princip.
- Fermat's_principle sameAs Fermatsches_Prinzip.
- Fermat's_principle sameAs Αρχή_του_ελαχίστου_χρόνου.
- Fermat's_principle sameAs Principio_de_Fermat.
- Fermat's_principle sameAs Principe_de_Fermat.
- Fermat's_principle sameAs Prinsip_Fermat.
- Fermat's_principle sameAs Principio_di_Fermat.
- Fermat's_principle sameAs フェルマーの原理.
- Fermat's_principle sameAs 페르마의_원리.
- Fermat's_principle sameAs Principe_van_Fermat.
- Fermat's_principle sameAs Zasada_Fermata.
- Fermat's_principle sameAs Princípio_de_Fermat.
- Fermat's_principle sameAs m.098w7.
- Fermat's_principle sameAs Q331041.
- Fermat's_principle sameAs Q331041.
- Fermat's_principle sameAs Fermat's_principle.
- Fermat's_principle wasDerivedFrom Fermat's_principle?oldid=593580189.
- Fermat's_principle depiction Snells_law.svg.
- Fermat's_principle isPrimaryTopicOf Fermat's_principle.