By: Ali Bin Afif, Aser Alaqeil, Abdullah Bawazir,
Ahmed Al Tammas, Hussien Mohmmed
REFRACTION
 Refraction,
in physics, the change in
direction of a wave passing from one
medium to another caused by its change
in speed. ... The electromagnetic waves
constituting light are refracted when crossing
the boundary from one transparent medium
to another because of their change in speed.
REFRACTION

The fact or phenomenon of
light, radio waves, etc. being
deflected in passing
obliquely through the
interface between one
medium and another or
through a medium of
varying density.

Change in direction of
propagation of any wave as
a result of its travelling at
different speeds at different
points along the wave front.

Measurement of the
focusing characteristics of
an eye or eyes
REFRACTION
 Why
do we study refraction?
This bending by refraction makes it
possible for us to have lenses,
magnifying glasses, prisms and
rainbows. Even our eyes depend upon
this bending of light. Without refraction,
we wouldn't be able to focus light onto
our retina.
REFRACTION
What are the conclusions obtained from
laws of refraction ?

The speed of light in a medium is low if the refractive index of the
medium is high and vice versa. When light travels from a denser
medium into a rarer medium, the refracted ray is bent away from the
normal drawn to the interface.
THANK YOU