reflection Flashcards
1
Q
what is the law of reflection?
A
. the incident ray , the reflected ray and the normal , all lie on the same plane
. angle of incidence = angle of reflection
2
Q
what is the property of plane mirror images?
A
. image is the same as the object
. image is laterally inverted
. image is virtual
. image can be located by taking two image rays and extrapolating backwards
3
Q
what happens in mirror rotation?
A
reflected ray rotates through twice the angle the mirror rotates
4
Q
what is the advantage of using imaging by reflection rather than refraction?
A
. you don’t need to change the medium
. there is no dispersion when looking at mirrors
