1.3 Flashcards
1
Q
Law of reflection
A
Angle t (angle of reflection)is the same as angle i (angle of incidence)
2
Q
Normal
A
The line perpendicular on the normal
You measure the angles with this
3
Q
Lenses
A
Are made of glass or transparent plastic and have a bulging or hollow dhape
4
Q
Converging lens
A
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Bends light rays towards each other
5
Q
Diverging lens
A
> <
Refracts light rays away from each other
6
Q
Principal axis
A
A light ray traveling along the principal axis does not change direction and continues in a straight line
7
Q
Focal length
A
Distance from the centre of the lens to the focal point
8
Q
A more convex lens has a … length
A
Shorter
9
Q
Field of view
A
The part of your surroundings that you can see
