Write the rule of refraction of light and define refractive index?

1.	Write the rule of refraction of light and define refractive index?
Answer» Rule of REFRACTION of LIGHT 1. Incident ray, refracted ray nd normal at the point of INCIDENCE, all lie in same plane. 2. The ratio of sin of incidence angle nd sine of refraction angle is constant for any two medium nd same colour of light. This is also called snell's law. Sin i / sin r = constant i is incidece angle nd r is refraction angle. This constant is called refractive index of second medium with respect to first medium. I hope it helps you

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Write the rule of refraction of light and define refractive index?

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