Fresnel (unit)
A fresnel is a unit of frequency equal to one trillion cycles per second (i.e., 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 It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 1012 hertz).
A fresnel is a unit of frequency equal to one trillion cycles per second (i.e., 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 It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 1012 hertz).
A fresnel is a unit of frequency equal to one trillion cycles per second (i.e., 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 It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 1012 hertz).
Source: Wikipedia "Fresnel (unit)" · CC BY-SA 4.0
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