Multiple Choice
An astronomical telescope has an objective of diameter 20 cm with a focal length of 180 cm. The telescope is used with an eyepiece of focal length 3.0 cm. The magnifying power of the telescope is
A) 360 X.
B) 60 X.
C) 540 X.
D) 7 X.
E) 180 X.
Correct Answer:

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Correct Answer:
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