Snell’s law of refraction
E26832
Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Snell's law | 3 |
| Snell–Descartes law | 2 |
| Snell’s law | 1 |
| Snell’s law of refraction canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T209726 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Snell’s law of refraction Context triple: [Newtonian optics, usesConcept, Snell’s law of refraction]
-
A.
Huygens–Fresnel principle
The Huygens–Fresnel principle is a fundamental concept in wave optics that explains how every point on a wavefront acts as a source of secondary wavelets whose interference determines the wave’s subsequent propagation and diffraction.
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B.
Newtonian optics
Newtonian optics is the branch of physics developed by Isaac Newton that explains light primarily as a stream of particles to account for reflection, refraction, and color phenomena.
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C.
Fresnel diffraction theory
Fresnel diffraction theory is a wave-optics framework that describes how light diffracts when source or observation distances are finite, using near-field approximations derived from the Huygens–Fresnel principle.
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D.
Fraunhofer diffraction
Fraunhofer diffraction is the far-field diffraction pattern of waves, typically light, observed when both the source and observation screen are effectively at infinite distance or made so with lenses, producing characteristic interference patterns.
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E.
Poisson spot
Poisson spot is a bright point of light that appears at the center of the shadow of a circular object due to wave diffraction, providing striking evidence for the wave nature of light.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Snell’s law of refraction Target entity description: Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
-
A.
Huygens–Fresnel principle
The Huygens–Fresnel principle is a fundamental concept in wave optics that explains how every point on a wavefront acts as a source of secondary wavelets whose interference determines the wave’s subsequent propagation and diffraction.
-
B.
Newtonian optics
Newtonian optics is the branch of physics developed by Isaac Newton that explains light primarily as a stream of particles to account for reflection, refraction, and color phenomena.
-
C.
Fresnel diffraction theory
Fresnel diffraction theory is a wave-optics framework that describes how light diffracts when source or observation distances are finite, using near-field approximations derived from the Huygens–Fresnel principle.
-
D.
Fraunhofer diffraction
Fraunhofer diffraction is the far-field diffraction pattern of waves, typically light, observed when both the source and observation screen are effectively at infinite distance or made so with lenses, producing characteristic interference patterns.
-
E.
Poisson spot
Poisson spot is a bright point of light that appears at the center of the shadow of a circular object due to wave diffraction, providing striking evidence for the wave nature of light.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
law of optics
ⓘ
law of refraction ⓘ physical law ⓘ |
| alsoKnownAs |
Snell’s law of refraction
ⓘ
surface form:
Snell–Descartes law
Snell’s law of refraction ⓘ
surface form:
Snell’s law
|
| angleMeasuredFrom | normal to the interface ⓘ |
| appliesTo |
electromagnetic waves
ⓘ
infrared radiation ⓘ light rays ⓘ microwaves ⓘ transition between two homogeneous media ⓘ visible light ⓘ wavefronts at planar interfaces ⓘ |
| assumes |
isotropic media
ⓘ
linear media ⓘ monochromatic light ⓘ non-absorbing media ⓘ |
| connects | speed of light in different media ⓘ |
| consequenceOf | wave nature of light ⓘ |
| derivedFrom |
Fermat’s principle of least time
ⓘ
Huygens–Fresnel principle ⓘ
surface form:
Huygens’ principle
|
| describes | refraction of light ⓘ |
| equationForm | n1 * sin(θ1) = n2 * sin(θ2) ⓘ |
| expressibleAs | n = c / v ⓘ |
| field |
geometrical optics
ⓘ
optics ⓘ |
| governs | bending of light at an interface ⓘ |
| hasLimitation | does not directly account for anisotropic crystals ⓘ |
| historicallyAttributedTo | Willebrord Snellius ⓘ |
| implies |
light bends away from normal when entering lower index medium
ⓘ
light bends toward normal when entering higher index medium ⓘ ratio of sines of angles equals ratio of refractive indices ⓘ |
| mathematicalType | trigonometric relation ⓘ |
| relatedTo |
critical angle
ⓘ
law of reflection ⓘ total internal reflection ⓘ |
| relates |
angle of incidence
ⓘ
angle of refraction ⓘ refractive index of media ⓘ |
| symbolDefinition |
n1 is refractive index of first medium
ⓘ
n2 is refractive index of second medium ⓘ θ1 is angle of incidence ⓘ θ2 is angle of refraction ⓘ |
| usedIn |
design of lenses
ⓘ
design of prisms ⓘ fiber optics ⓘ optical imaging systems ⓘ ray tracing calculations ⓘ refractive index measurements ⓘ |
| validWhen | wavelength is much smaller than system dimensions ⓘ |
How these facts were elicited
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You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: Snell’s law of refraction Description of subject: Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.