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Fresnel numbers

Fresnel numbers is the plural of Fresnel number.

Meaning of Fresnel number

Noun

Fresnel number (plural Fresnel numbers)

  1. A dimensionless quantity (denoted F), such that for an electromagnetic wave passing through an aperture and hitting a screen, F=(a²)/(Lλ) where a is the characteristic size (e.g. radius) of the aperture, L is the distance of the screen from the aperture, and λ is the incident wavelength.

Questions about Fresnel numbers

What is Fresnel numbers the plural of?
Fresnel numbers is the plural of Fresnel number.

Words near Fresnel numbers in the dictionary

  1. Fresnel lantern
  2. Fresnel lanterns
  3. Fresnel lens
  4. Fresnel lenses
  5. Fresnel number
  6. Fresnel numbers
  7. Fresnel reflection
  8. Fresnel reflections
  9. Fresnel rhomb
  10. Fresnel rhombs
  11. Fresnel spot

Source and license

Adapted from Wiktionary: Fresnel numbers (page history and authors); Fresnel number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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