Home > Terms > English, UK (UE) > Focal point

Focal point

The point of a mirror or lens where all light that runs parallel to the principal axis will be focused. Concave mirrors and convex lenses are designed to focus light into the focal point. Convex mirrors and concave lenses focus light away from the focal point.

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  • Part of Speech: noun
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  • Industry/Domain: Physics
  • Category: General physics
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