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What is the Lens Maker's Formula for a thin lens in air?

デッキ「NEET UG High-Yield Review (Biology, Physics, Chemistry)」の単語カード。

解答

$\frac{1}{f} = (n - 1) \left( \frac{1}{R_1} - \frac{1}{R_2} \right)$, where $R_1$ and $R_2$ are the radii of curvature.

解説

Convex lenses have positive focal lengths in air; concave lenses have negative focal lengths.

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