Grade 10 AP Science - Optics - Converging and Diverging Lenses

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5 Terms

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Converging lens
A lens that spreads parallel light rays toward a common point
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Optical center
\-O

\-The point at the exact center of the lens
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Principal focus
\-F

\-The point on the principal axis of a lens where light rays parallel to the principal axis converge after refraction
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Secondary principal focus
\-F’

\-The focal point on the principal axis on the same side of the lens as the incident rays
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2F and 2F’
\-Twice the distance of the principal focus or the secondary principal focus