10.6 Flashcards
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
lateral inversion
A
sideways reversal of images in a mirror
6
Q
refractions
A
change in the speed of light as it passes from one substance into another. It usually involves a change in direction.
7
Q
normal
A
line drawn perpendicular to a surface at the point where a light ray meets it
8
Q
image
A
picture of an object
