Mirror Uses, Properties, and Formulae Flashcards
1
Q
Convex mirror uses
A
- Sunglasses
- Rear-view mirrors
- Ladle or back of spoon
2
Q
Concave mirror uses
A
- Microscopes/telescopes
- Flashlights
- Headlights
3
Q
When do is positive/negative
A
- ALWAYS POSITIVE
4
Q
When di is positive/negative
A
- Positive- Real image
- Negative- Virtual image
5
Q
When ho is positive/negative
A
- Positive- Upwards
- Negative- Downwards
6
Q
When hi is positive/negative
A
- Positive- Upwards
- Negative- Downwards
7
Q
When f is positive/negative
A
- Positive- Converging (concave)
- Negative- Diverging (convex)
8
Q
When M is positive/negative
A
- Positive- Upright image
- Negative- Inverted image
9
Q
Two laws of reflection
A
- Angle of incidence = angle of reflection (θi = θr)
- The incident ray, the reflected ray, and the normal are all on the same plane.
10
Q
How to get f from diameter
A
D = -2R = -4f
