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6 Cards in this Set

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  • Back
what are lens
a piece of glass or other transparent material shaped so that it can produce an image by refracting light that comes from any object.
What are the two kinds of lenses?
Converging lenses and diverging lenses.
What's a converging lens?
A converging lens is thicker in the middle than its rim
What's a diverging lens?
A diverging lens is thinner in the middle than its rim.
What would happen to a piece of paper is sunlight is used?
If sunlight was used, the concentration of radiant energy may be enough to burn a hole through a piece of paper.
What is the focal length?
The ditance from the lens to F.