Answers

2014-05-28T15:41:32+05:30
Snell's law is an formula used to describe relationship between angle of incidence and angle of refraction

                        expression:
                                              sinФ1/sinФ2=v1/v2=n1/n2
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  • Brainly User
2014-05-29T09:57:06+05:30
According to Snell's law,
the ratio of sine of angle of incidence to the sine of angle of refraction of a medium is constant.
That constant is called as Refractive index of the medium.
μ = sin i / sin r
1 5 1