Q9 of 70 Page 11

How is the length of the telescope tube related to the distance between the objective and the eyepiece of the telescope? How can the  magnification of the telescope be increased?

The length of the telescope tube is equal to the distance between the objective and eyepiece of the telescope. In order to increase the magnification of the telescope, the objective must have a large focal length and the eyepiece a small focal length.

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