An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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polarization fraction
  برخه‌ی ِ قطبش  
barxe-ye qotbeš
Fr.: fraction de polarisation  

The ratio expressed by P = (Ipar - Iper) / (Ipar + Iper), where Ipar and Iper are the light intensities with the electric field vector respectively parallel and perpendicular to the incident beam.

See also: → polarization; → fraction.