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Review of Geometric Optics

Review of Geometric Optics

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Ray Diagrams for Thin Converging<br />

• Ray 1 is drawn parallel to the<br />

principal axis. After being<br />

refracted by the lens, this ray<br />

passes through the focal point<br />

on the back side <strong>of</strong> the lens.<br />

• Ray 2 is drawn through the<br />

center <strong>of</strong> the lens and continues<br />

in a straight line.<br />

• Ray 3 is drawn through that<br />

focal point on the front side <strong>of</strong><br />

the lens (or as if coming from<br />

the focal point if p

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