Question

Derive of snell's law​

Answer 1

Answer:

Snell's law can be derived from Fermat's principle, which states that the light travels the path which takes the least time. By taking the derivativeof the optical path length, the stationary point is found giving the path taken by the light.

Answer 2

Answer:

Snell's law can be derived from Fermat's principle, which states that the light travels the path which takes the least time. By taking the derivative of the optical path length, the stationary point is found giving the path taken by the light.