refractive index

ratio of the speed of light in vacuum to that in the medium
Thing general Q174102
refractive index
Oleg Alexandrov · Public Domain · Wikimedia
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refractive index

Summary

refractive index ranks in the top 1% of general entities by monthly Wikipedia readership (1,013 views/month).[1]

Key Facts

  • refractive index's video is recorded as Negative refraction.ogv[2].
  • refractive index's image is recorded as Snells law wavefronts.gif[3].
  • refractive index's GND ID is recorded as 4146524-6[4].
  • refractive index's Library of Congress authority ID is recorded as sh85112261[5].
  • refractive index's subclass of is recorded as physical quantity[6].
  • refractive index's subclass of is recorded as dimensionless quantity[7].
  • refractive index's subclass of is recorded as index number[8].
  • refractive index's Commons category is recorded as Refraction[9].
  • refractive index's quantity symbol is recorded as n[10].
  • refractive index's BNCF Thesaurus ID is recorded as 34514[11].
  • refractive index's Freebase ID is recorded as /m/06g9s[12].
  • refractive index's Art & Architecture Thesaurus ID is recorded as 300379659[13].
  • refractive index's Dewey Decimal Classification is recorded as 530.412[14].
  • refractive index's Dewey Decimal Classification is recorded as 620.11295[15].
  • refractive index's Dewey Decimal Classification is recorded as 535.324[16].
  • refractive index's described by source is recorded as ISO 80000-7:2008 Quantities and units—Part 7: Light[17].
  • refractive index's described by source is recorded as ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation[18].
  • refractive index's described by source is recorded as Meyers Konversations-Lexikon, 4th edition (1885–1890)[19].
  • refractive index's Encyclopædia Britannica Online ID is recorded as science/refractive-index[20].
  • refractive index's Encyclopædia Britannica Online ID is recorded as topic/negative-refractive-index[21].
  • refractive index's main Wikidata property is recorded as P1109[22].
  • refractive index's different from is recorded as complex refractive index[23].
  • refractive index's NALT ID is recorded as 55970[24].
  • refractive index's defining formula is recorded as n = \frac{c_0}{c}[25].
  • refractive index's Great Russian Encyclopedia Online ID is recorded as 3175779[26].

Why It Matters

refractive index ranks in the top 1% of general entities by monthly Wikipedia readership (1,013 views/month).[1] It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[27] It is known by 44 alternative names across languages and contexts.[28]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . wikidata.org.
  4. [5] . Integrated Authority File. wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . ISO 80000-1:2009 Quantities and units—Part 1: General. wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . wikidata.org.
  10. [11] . Nuovo soggettario. wikidata.org.
  11. [12] . Freebase Data Dumps. wikidata.org.
  12. [13] . wikidata.org.
  13. [14] . Integrated Authority File. Retrieved . wikidata.org.
  14. [15] . Integrated Authority File. Retrieved . wikidata.org.
  15. [16] . Integrated Authority File. Retrieved . wikidata.org.
  16. [17] . wikidata.org.
  17. [18] . wikidata.org.
  18. [19] . wikidata.org.
  19. [20] . wikidata.org.
  20. [21] . wikidata.org.
  21. [22] . wikidata.org.
  22. [23] . wikidata.org.
  23. [24] . wikidata.org.
  24. [25] . ISO 80000-7:2008 Quantities and units—Part 7: Light. wikidata.org.
  25. [26] . wikidata.org.

Aggregate / graph-position facts

  1. [1] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [27] . Wikidata sitelinks. wikidata.org.
  3. [28] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). refractive index. Retrieved April 11, 2026, from https://4ort.xyz/entity/refractive-index
MLA “refractive index.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/refractive-index.
BibTeX @misc{4ortxyz_refractive-index_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{refractive index}}, year = {2026}, url = {https://4ort.xyz/entity/refractive-index}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): refractive index — https://4ort.xyz/entity/refractive-index (retrieved 2026-04-11)

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