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प्रश्न
Write the relation between the angle of incidence and the angle of refraction for a medium.
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उत्तर
The relationship between the angles of incidence and refraction is given by Snell's law.
According to this law, the ratio of the sines of the angles of incidence and refraction is constant for a given pair of media.
`"(Sineof angle of incidence (i))"/"(Sine of angle of refraction (r)"="constant (n)"`
This constant is known as refractive index.
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