laws of refraction snen's law
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Discovered by Willebrord Snell in 1621 the laws of refraction are also termed as Snell's law. As we know the refraction or bending of light takes place when it travels from medium to medium. The degree of bend is predicted by the help of this law.
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Snell's law of refraction states that the ratio of the sin i to sin r will be constant
sin i / sin r = constant
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