Question

What is called the absolute refractive index of a medium? Obtain the general form of Snell’s law in terms of refractive indices of two media?Answer the given question in brief.

Answer 1

''Absolute Refractive Index of the medium is defined as the ratio of the speed of the light in air to the speed of the light in that medium.''

Mathematically,

Absolute Refractive Index = Velocity of light in air/Velocity of light in that medium.

Now, Snell's law is the Second law of the Refraction.

''According to it, the refraction index of second media with respect to first media is defined as the ratio of the refractive index of media 1 to the refractive index of media 2.''

Hope it helps.