the angle between the perpendicular and a ray refracted at a surface

listen to the pronunciation of the angle between the perpendicular and a ray refracted at a surface
الإنجليزية - الإنجليزية
angle of refraction
the angle between the perpendicular and a ray refracted at a surface

    الواصلة

    the An·gle be·tween the per·pen·di·cu·lar and a ray refracted at a sur·face

    النطق

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