تماشای ویدئو Specular and diffuse reflection 2 Geometric optics Physics Khan Academy از آی-ویدئو

Specular and Diffuse Reflection 2. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/physics/geometric-optics/reflection-refraction/v/refraction-and-snell-s-law?utm_source=YT
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