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An Astronomical Telescope Is Made with Lenses of Focal Lengths

Question 31

Multiple Choice

An astronomical telescope is made with lenses of focal lengths 80.0 and 2.00 cm.What is the barrel length on this telescope?

A) 80.0 cm
B) 82.0 cm
C) 78.0 cm
D) 105 cm
E) 127 cm

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