Refraction and Lenses
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Created by:
mastergenius000 on March 19, 2012
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10 terms
Terms | Definitions |
|---|---|
 lens | a curved piece of glass or other transparent material used to refract light |
| concave lens | a lens that is thicker on the edges than in the middle |
| convex lens | a lens that is thinner on the edges than in the middle |
| virtual image | an upright image formed where rays of light appear to meet or come from |
| real image | a copy of an object formed at the point where light rays actually meet |
| index of refraction | the angle by which light is refracted |
| concave lens | causes parallel light rays to spread apart |
| convex lens | brings parallel light rays together at a focal point |
| concave lens | forms a virtual image |
| convex lens | forms a real or a virtual image |
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