Tutor it's Snell Law of Refraction not Reflection. Kindly correct it.
Thanks!
And what is Snell's Law of Refraction?

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Solution

Dear student According to the Snell's law, The ratio of sine of angle of incidence to the sine of angle of refraction is constant. sine of angle of incidence(i)/sine of angle of refraction(r)=constant this constant is called refractive index(n). n=sin i/sin r. Regards

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μ_{1} sin θ_{1} = μ_{2} sin θ_{2}

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= 3 \times 10^{8} m s^{- 1}

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