Thin Lenses

Thin Lenses - Thin Lenses and Lens Systems Section 422,...

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Thin Lenses and Lens Systems Section 422, B.J. Anderson Stephen Harper Partner: Sarah Bass Tuesday, November 8, 2005 “The work presented in this report is my own, and the data were obtained by my lab partners and myself during the lab period.”
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Abstract: In this lab, the thin lens equation was studied, as well as lens systems and their life applications. A ray box was initially used to study the focal point of a concave and convex lens. In Parts II and III, an optics bench with a light source was used. It was found in Part I that the focal length of the convex lens was 7.6 ± 0.2 cm and the concave lens was 6.3 ± 0.3 cm. In Part II, the observed image distances of 9.7 ±0.3 and 14.7 ± 0.3 cm agree within uncertainties to the predicted image distances of 10.0 and 15.0 cm. The observed magnifications of 0.33 ± 0.08 and 0.97 ± 0.06 cm agree within uncertainties to the predicted magnifications of 0.33 and 1.00. In Part III, it was found that a concave lens is used to correct nearsightedness and a convex lens is used to correct farsightedness. Data Analysis and Results: Part I: A.) It was found that the focal length for the convex lens was 7.6 ± 0.2cm. B.) It was found that the focal length for the concave lens was 6.3 ± 0.3cm. Part II:
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This note was uploaded on 11/27/2011 for the course PHYS 105 taught by Professor Walker during the Fall '08 term at UNC.

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Thin Lenses - Thin Lenses and Lens Systems Section 422,...

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