# Question

An astronomical telescope has an eyepiece with a focal length of 10.0 mm. If the length of the tube is 1.50 m,

(a) What is the focal length of the objective?

(b) What is the angular magnification of the telescope when it is focused for an object at infinity?

(a) What is the focal length of the objective?

(b) What is the angular magnification of the telescope when it is focused for an object at infinity?

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