Fresnel number

parameter that specifies when Fresnel or Fraunhofer diffraction applies
Thing physical_law Q1455717
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Fresnel number

Summary

Fresnel number is a physical law[1]. It draws 77 Wikipedia views per month (physical_law category, ranking #72 of 113).[2]

Key Facts

  • Fresnel number's instance of is recorded as physical law[3].
  • Augustin-Jean Fresnel is named after Fresnel number[4].
  • Fresnel number's subclass of is recorded as characteristic number[5].
  • Fresnel number's Freebase ID is recorded as /m/08dzgj[6].
  • Fresnel number's defining formula is recorded as F = \frac{a^{2}}{L \lambda}[7].
  • Fresnel number's ISQ dimension is recorded as 1[8].
  • Fresnel number's maintained by WikiProject is recorded as WikiProject Mathematics[9].
  • Fresnel number's Microsoft Academic ID is recorded as 166453422[10].
  • Fresnel number's Wolfram Language quantity ID is recorded as FresnelNumber[11].
  • Fresnel number's quantity symbol is recorded as F[12].
  • Fresnel number's OpenAlex ID is recorded as C166453422[13].
  • Fresnel number's Encyclopedia of China is recorded as 70780[14].

Why It Matters

Fresnel number draws 77 Wikipedia views per month (physical_law category, ranking #72 of 113).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[15]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Freebase Data Dumps. wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  12. [14] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [15] . Wikidata sitelinks. 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). Fresnel number. Retrieved May 3, 2026, from https://4ort.xyz/entity/fresnel-number
MLA “Fresnel number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/fresnel-number.
BibTeX @misc{4ortxyz_fresnel-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Fresnel number}}, year = {2026}, url = {https://4ort.xyz/entity/fresnel-number}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Fresnel number — https://4ort.xyz/entity/fresnel-number (retrieved 2026-05-03)

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