WWK Lens

refraction

Bending of light at the point of contact between two different media

angle of incidence

angle of which light enters a new medium

angle of refraction

amount of refraction that's determined by index of refraction of the medium and angle of incidence at which light hits it

refraction

face of light that's being deflected through the interface between 1 medium and another

reflect

a surface or body that's thrown back without absorbing it

medium

substance that transfers energy from a location to another

index of refraction

lets a substance slows down light waves passing through it. Equal to the ratio of velocity of light vacuum to it's speed in that substance Light is refracted when it enters or leaves the substance.