Lenses: Flashcards
1
Q
What is a virtual image?
A
Where the light from the object appears to be coming from a different place
2
Q
What is a real image?
A
Where the light from an object comes together to form an image on a screen
3
Q
Diverging lenses always produce a:
A
Virtual image
4
Q
A converging lens causes rays of light to:
A
Move together at the principal focus
5
Q
A diverging lens causes rays of light to:
A
Spread out
6
Q
Why does a converging lens produce a real image?
A
Because the light rays all meet at the same point
7
Q
Drawing a ray diagram tells us what three things about an image?
A
Whether it is magnified or diminished, upright or inverted, virtual or real
