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A fresnel is a unit of frequency equal to 1012 s−1. It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 1012 hertz). It is named for Augustin-Jean Fresnel the physicist whose expertise in optics led to the creation of Fresnel lenses.

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  • Fresnel (unitatea) (eu)
  • Fresnel (unit) (en)
  • Fresnel (jednostka) (pl)
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  • A fresnel is a unit of frequency equal to 1012 s−1. It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 1012 hertz). It is named for Augustin-Jean Fresnel the physicist whose expertise in optics led to the creation of Fresnel lenses. (en)
  • Fresnela 1012 s−1 balio duen maiztasun unitatea da. Behiala espektroskopiaren alorrean erabilia; gaur egun, aldiz, terahertz (1012 hertz) unitate baliokidea erabiltzen da bere ordez. Augustin-Jean Fresnel, optikan aditua eta Fresnel leiarren garatzailea, fisikariaren omenez jarri zioten izena unitateari. (eu)
  • Fresnel – jednostka częstotliwości. W układzie SI jednostka ta jest równa jednemu terahercowi (THz). 1 fresnel = 1 THz = 1012 Hz = 1012 s-1 Nazwa fresnel pochodzi od nazwiska fizyka francuskiego Augustina Jeana Fresnela (1788–1827). (pl)
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  • A fresnel is a unit of frequency equal to 1012 s−1. It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 1012 hertz). It is named for Augustin-Jean Fresnel the physicist whose expertise in optics led to the creation of Fresnel lenses. (en)
  • Fresnela 1012 s−1 balio duen maiztasun unitatea da. Behiala espektroskopiaren alorrean erabilia; gaur egun, aldiz, terahertz (1012 hertz) unitate baliokidea erabiltzen da bere ordez. Augustin-Jean Fresnel, optikan aditua eta Fresnel leiarren garatzailea, fisikariaren omenez jarri zioten izena unitateari. (eu)
  • Fresnel – jednostka częstotliwości. W układzie SI jednostka ta jest równa jednemu terahercowi (THz). 1 fresnel = 1 THz = 1012 Hz = 1012 s-1 Nazwa fresnel pochodzi od nazwiska fizyka francuskiego Augustina Jeana Fresnela (1788–1827). (pl)
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