10.6 Flashcards
(7 cards)
1
Q
Rays
A
narrow beams of light.
2
Q
Concave
A
a lens that is curved outwards.
3
Q
Convex
A
a lens that is curved inwards.
4
Q
Focal point
A
where light rays ‘close in’ (converge) towards a point.
5
Q
Refraction
A
change in the speed of light as it passes from one substance into another. It usually involves a change in direction.
6
Q
Normal
A
line drawn perpendicular to a surface at the point where a light ray meets it.
7
Q
Image
A
picture of an object.
