refraction +reflection? idek atp Flashcards
1
Q
define the angle of incidence
A
the angle that is formed at the point of incidence, measured from the ray of incidence to the normal
(the angle that is from the ray hitting a surface to the normal)
2
Q
define the angle of refraction
A
the angle between the refracted ray and the normal
3
Q
when does refraction occur
A
Refraction occurs when light goes from one material into a different material with a different density. EG: air–>glass
4
Q
define refraction
A
Refraction is the change in direction
of waves that occurs when waves
travel from one medium to another.
Waves will slow when going from a
rarer medium to a denser one, and
will then speed up when going back
to a rarer one.