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Unformatted text preview: of the Hubble telescope? [4] A small object is 20 cm from a thin positive lens of focal length 10 cm. To the right of the lens is a plane mirror that crosses the axis of the second focal point of the lens and is tilted so that the re F ected rays do not go back through the lens. a) Find the position of the f nal image b) Is it real or virtual? c) Sketch a ray diagram showing the f nal image [5] An object is 15 cm in front of a positive lens of focal length 15 cm. A second positive lens of focal length 15 cm is 20 cm from the f rst lens. Find the f nal image and draw a ray diagram. [6] A microscope has an objective of focal length 16 mm and an eyepiece that gives an angular magni f cation of 5 for a person whose near point is at 25 cm. The tube length is 18 cm. See Tipler chapter 32 if you need help. a; What is the lateral magni f cation of the objective? b; What is the magnifying power of the microscope? 1...
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This note was uploaded on 04/07/2008 for the course PHY 113 taught by Professor Jordan during the Spring '08 term at Rochester.
 Spring '08
 Jordan
 Work, Light

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