QUIZ 2 - Mirrors Flashcards
1
Q
Virtual image
A
❌ light from source
❌ focused on screen
right side up
2
Q
Real Image
A
✓ light from source
✓ focused on screen
inverted
3
Q
Law of Reflection
A
∠ incidence = ∠ reflection
4
Q
Mirror Equation
A
5
Q
Magnification Equation
A
6
Q
Focal length =
A
7
Q
Plane mirrors:
A
Virtual, upright
SAME size
behind mirror
8
Q
What is the length of a mirror needed to see an entire object?
A
1/2 of object height
9
Q
Convex
A
10
Q
Concave
A
11
Q
The more curved the mirror is
A
the more blurry the image
12
Q
The smaller the size of the mirror compared to the radius of curvature (r)
A
the more focused the image (rays will cross at a single point –> focus)
13
Q
What kind of mirrors will reflect rays to a perfect focus?
A
parabolic mirrors
14
Q
What are 4 rays to draw when doing mirror ray diagrams?
CONCAVE MIRROR
A
- Enter parallel → exit through F
- Enter through F → exit parallel
- Enter through C (perpendicular to mirror) → exit back on itself
- Enter incident at the optical axis → reflected back same angle
15
Q
If image height (hi) +
A
upright image
