The distance between the objective and the eyepiece \( \mathrm{P} \...

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The distance between the objective and the eyepiece
\( \mathrm{P} \)
in an astronomical telescope is \( 101 \mathrm{~cm} \). The
W
magnifying power of normal adjustment is 100 . The focal length of the objectives and eyepiece is:
(1) \( 10 \mathrm{~cm} \) and \( 1 \mathrm{~cm} \) respectively
(2) \( 100 \mathrm{~cm} \) and \( 1 \mathrm{~cm} \) respectively
(3) \( 1 \mathrm{~cm} \) and \( 100 \mathrm{~cm} \) respectively
(4) \( 1 \mathrm{~cm} \) and \( 10 \mathrm{~cm} \) respectively
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