1 Refraction: 2  is the bending of light as it passes from one medium to another with different densities. 3  amount of refraction depends upon: 4  density of the materials. 5  angle at which the light enters the material. 6  wavelength-causes colors of white light to separate when passing through a prism.efraction of Light. 1  Refraction: 2  is the bending of light as it passes from one medium to another with different densities. 3  amount of refraction depends upon: 4  density of the materials. 5  angle at which the light enters the material.