Answer:
A) Ratio of the speed of light in a vacuum to the speed of light in a medium (refractive index)
B) Rule for how light is refracted at the boundary between two materials (snell's law)
C) Process that occurs when the angle of incidence is greater than the critical angle (total internal reflection)
D) Path of a particle of light (ray)
E) The separation of light into different frequencies to produce a rainbow (dispersion)
