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What is snells law

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What is snells law
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Yogita Ingle 7 years, 10 months ago

Snell’s law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”. Snell’s law formula is expressed as:
{tex}\frac{sin\;i}{\sin\;r}\;=constant{/tex}

Where i is the angle of incidence and r is the angle of refraction. This constant value is called the refractive index of the second medium with respect to the first.

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