Explanation The magnification M of a telescope is the ratio of the focal lengths of the objective and eyepiece. M = − f o f e Here, the focal length of the objective is f o and that of the eyepiece is f e . In reflecting telescopes, concave mirrors are used as objective. If the mirror fas a radius of curvature R, then the focal length is related to the radius of curvature, as, R = 2 f o Given: The magnification of the telescope M = 150 × The focal length of the eyepiece f e = 3.1 cm Formula: f o = − M × f R = 2 f o Calculation: Use the given value of magnification and the focal length of the eyepiece, calculate the focal length of the objective...

7th Edition

ISBN: 9780321921741

Author: GIANCOLI

Publisher: PEARSON

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Chapter 25, Problem 38P

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The focal length and the radius of curvature of the main objective mirror in the reflecting astronomical telescope.

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Chapter 25, Problem 37P

Chapter 25, Problem 39P

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Chapter 25 Solutions

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