A telescope with a magnification of (22 times) has an eyepiece lens for which the focal length

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A telescope with a magnification of \(22 \times\) has an eyepiece lens for which the focal length \(f_{2}\) is \(40.0 \mathrm{~mm}\).

(a) What is the focal length \(f_{1}\) of the objective lens?

(b) What is the length of the telescope?

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