Galileo devised a simple terrestrial telescope that
Chapter 25, Problem 25.30(choose chapter or problem)
Galileo devised a simple terrestrial telescope that produces an upright image. It consists of a converging objective lens and a diverging eyepiece at opposite ends of the telescope tube. For distant objects, the tube length is the objective focal length less the absolute value of the eyepiece focal length. (a) Does the user of the telescope see a real or virtual image? (b) Where is the nal image? (c) If a telescope is to be constructed with a tube of length 10.0 cm and a magnication of 3.00, what are the focal lengths of the objective and eyepiece?
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