When light travels from air to glass it is called refraction. As it travels, the light ray slows down and bends towards the normal. The normal is a line drawn at right angles to the boundary of the medium.
it bends
bends upward
refracted light
Water will bend a beam of light. Try this put a stright pincil in a glass of water. The pencil is still stright but looks bent. The water is bending the beam of light.
prism
A lens is a curved glass that refracts or bends light rays. The two principal types of lenses are convex and concave.
glass bends light
The blue light is refracted more.
When light travels from air to glass it is called refraction. As it travels, the light ray slows down and bends towards the normal. The normal is a line drawn at right angles to the boundary of the medium.
A lens
it bends
It bends in water or a magnifying glass.
bends upward
Mirror (uses reflection principle), transparent glass sheet (uses refraction principle),etc are the instruments which are used to bend light.
It doesn't water refracts or bends the light which is why the straw looks bent in a glass of water
refracted light