Level 1 Level 3
Level 2

Lenses


9 words 0 ignored

Ready to learn       Ready to review

Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

All None

Ignore?
Converge
What does a Convex lens cause rays of light to do?
Diverge
What does a Concave lens cause rays of light to do?
Where the rays hitting the lens parallel to the axis meet
Where is the principal focus on a Convex lens?
Where the rays hitting the lens parallel to the axis appear to all come from
Where is the principal focus on a Concave lens?
The focal length
What is the distance from the centre of the lens to the principal focus called?
Real
Is the image formed by a Convex lens real or virtual?
Virtual
Is the image formed by a Concave lens real or virtual?
Changes the direction of light as it passes from one medium to another
What does refraction do?
By refracting light
How does a lens form an image?