refraction and reflection Flashcards
1
Q
what are light waves and what can they do?
A
they are transverse waves and they can be reflected and refracted
2
Q
what is the law of reflection?
A
the angle of incidence equals the angle of reflection
3
Q
what is the critical angle?
A
the angle of incidence is no longer refracted but totally reflected.
4
Q
when does total internal reflection take place?
A
when light is travelling
- from a more to a les dense medium
- the angle of incidence is greater than the critical angle
