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A ray of light is reflected or refracted at the boundary of two mediums with different refractive indices.
reflection of light, refraction, reflection, Snell-Descartes law, normal, refractive index, boundary, angle of incidence, ray of light, angle of refraction, angle of reflection, light, optical depth, photon, reflected, optics, physics
When light reaches the boundary of air and glass, it is partly reflected, partly refracted.
In the case of reflection the angle of incidence and the angle of reflection are equal.
The incident ray as well as the normal and reflected ray are on one plane.
According to the Snell-Descartes law, when light is refracted, the ratio of the sines of the angles of incidence and refraction is equivalent to the refractive index of the second medium relative to the first medium.
The incident ray as well as the normal and refracted ray are on one plane.
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