3.2: Properties of Light & Reflection Flashcards
(11 cards)
1
Q
Incident Ray
A
travels from light source to surface
2
Q
Reflected Ray
A
begins where incident ray and mirror meet
3
Q
Normal
A
perpendicular to surface where light hits
4
Q
Angles
A
between rays and normal
5
Q
Law of Reflection
A
- angle of incidence = angle of reflection
- incident ray, normal, and reflected ray lie on same plane
- rays are on opposite sides of normal
6
Q
Images in Plane Mirrors
A
- To find where eye sees it, extend reflected rays until they meet at POI behind mirror
- Image forms where reflected ray meet
7
Q
What are dashed lines for?
A
representing rays or images reflected behind a mirror
8
Q
Four Characteristics of Images
A
S - Size
A - Attitude (upright or inverted)
L - Location (closer or father from mirror)
T - Type (real or virtual)
9
Q
Real image
A
light rays meet at one point in front of mirror, inverted
10
Q
Virtual Image
A
light rays extended behind the mirror, upright
11
Q
What Images form for plane mirrors?
A
same size, upright, same distance, virtual
