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Focal length

Español: El foco F y la distancia focal f de una lente positiva, una lente negativa, un espejo cóncavo, y un espejo convexo.
English: The focus F and the focal length f of a positive lens, a negative lens, a mirror concave and convex mirror.
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22 January 2005

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current10:30, 22 January 2005Thumbnail for version as of 10:30, 22 January 2005180 × 543 (7 KB)Rferrero~commonswikiFocal length

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