Which is the best example of refraction? a) an image appears that is exactly like the real object. b) when put into a container, two mediums do not mix together. c) a laser beam looks bent when it passes through glass blocks. d) a concave lens causes an object to appear larger than its actual size. eliminate

C-A laser beam looks bent when it passes through glass blocks

Explanation:

Refraction is the change in the speed of the light when passing from one medium to another with a different refractive index. While changing the medium light appears to change the direction or bent towards the normal -  a perpendicular line to the horizontal line.