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प्रश्न
State the laws of refraction.
थोडक्यात उत्तर
उत्तर
The Law of refraction is called Snell’s law.
Snell’s law states that,
- The incident ray, refracted ray and normal to the refracting surface are all coplanar (i.e. lie in the same plane).
- The ratio of angle of incident i in the first medium to the angle of reflection r in the second medium is equal to the ratio of the refractive index of the second medium n2 to that of the refractive index of the first medium n1.
`(sin "i")/(sin "r") = "n"_2/"n"_1`.
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