Question

If sin i /sin r = constant what is this constant stand for​

Answer 1

Answer:

Explanation: frac{sin\;i}{sin\;r}=constant=\mu. Where i is the angle of incidence and r is the angle of refraction. This constant value is called the refractive index of the second medium with respect to the first. Snell's law formula is derived from Fermat's principle.

Answer 2

Explanation:

Then it is called Snells law