State laws of refraction

The laws of refraction are “the incident ray AB and the refracted ray BC and the perpendicular at B to the surface separating the two media Mo and M1 lie in the same plane”.

State laws of refraction

The laws of refraction Snell’s discovery is usually called a law of refraction. In astronomical observations, the light from the particular heavenly body observed has to pass through the earth’s atmosphere before reaching the observer, and during its passage a ray of light suffers a change in direction due to refraction, the amount of which depends on the physical characteristics of the atmosphere and on the altitude of the body concerned.

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