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التكنولوجيا

الانكسار |  Refraction

22 أبريل 2020

عندما يسقط الشعاع الضوئي من وسط أول إلى وسط ثانٍ، يعاني هذا الشعاع تغييراً في مساره داخل الوسط الثاني؛ بسبب تغيُّر في سرعة الشعاع الضوئي بين الوسطين، وتُسمَّى هذه الظاهرة بانكسار الضوء. ويمكن معرفة الزاوية الجديدة لمسار الشعاع الضوئي داخل الوسط الثاني من خلال قانون سنِل: n1/n2 = sin α2/sin α1، ويدل كل من n1 و n2 على معامل انكسار الوسط الأول والوسط الثاني على الترتيب، ويدل كل منα1 و α2 على زاوية السقوط وزاوية الانكسار على الترتيب.

اقرأ أيضاً

زاوية السقوط |  Angle of incidence & زاوية الانعكاس |  Angle of reflection & زاوية الانكسار |  Angle of refraction & معامل الانكسار |  Refractive index