This lab builds of the lab titled, 'Refraction and the role of time'. 

In the previous lab, we looked at how light travels in such a way as to minimize the travel time. In this simulation, we look at the connection between the minimization of the travel time and Snell's Law.

It turns out that Snell's law is completely consistent with light taking the minimum time to travel from one point to another. Explore bending of light between two media with different indices of refraction. You can observe the relationship with time and connection to Snell's law in the two plots.