What is the correct formula in * 1 point determining the frequency of light as an electromagnetic wave? Total internal reflection can * 1 point occur when light passes from one medium to another 0 that has a lower index of refraction O has a higher index of refraction O that has the same index of refraction O at less than the critical angle Relative to the angle of 1 point incidence, the angle of refraction O is smaller 0 is the same 0 is larger 0 may be any of the above What happens to light when it * 1 point is perpendicularly incident into a transparent material? O Light refracts at 90 degrees Q There is no refraction occurs 0 Light is reflected back 0 Light bends away