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Unformatted text preview: 1. A thin lens has a near surface with a radius of curvature of 5.00 cm and a far surface with a radius of curvature of +7.00 cm. (a) Is the lens converging or diverging? (b) What is the focal length of the lens if the index of refraction of the material is 1.74? (c) What is the focal length of the other focal point? (d) what would be the focal length if you place the lens in water (n = 1.33)? 1. A camera has a lens of focal length 50.0 mm and is focused on an object 0.800 m from the lens. (a) To focus on an object effectively at infinity, will the lens have to move toward or away from the film? (b) How far will the lens have to move? Give the answer in millimeters....
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 Spring '08
 Ye
 Magnetism, Work

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