MathType - A thin #lens is an optical lens whose thickness is negligible compared to the radii of curvature of the lens surfaces. Under the thin lens hypothesis, the properties of the
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Thin lens - Wikipedia
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Thin lenses
Gaussian approximation
2.5: Thin Lenses - Physics LibreTexts
Thin lenses
Thin Lenses - Geometrical Optics - MCAT Content
Thin Lenses - Geometrical Optics - MCAT Content
Solved Part III: Determine the focal length using the thin | Chegg.com