The bending of light rays as they move from one medium to another
Refraction
what do light rays do when they go through a convex lens
converge
what do light rays do when they go through a concave lens
diverge
condition of the eye where the surface of the cornea is not rounded to the same degree in all areas
astigmatism
The distortion of an image is called
aberration
__________ occurs when 2 or more waves interact
interference
the bending of light waves around corners is called
diffraction
what happens when a light ray strikes a prism
dispersion
said that if light has a number of paths it can take, it will take the path that takes the least time
Fermat
a real image is _____
inverted