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    Exam 27: Optical Instruments
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    The Focal Length of the Objective Lens of a Telescope
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The Focal Length of the Objective Lens of a Telescope

Question 23

Question 23

Multiple Choice

The focal length of the objective lens of a telescope is 0.20 m and the eyepiece has a focal length of 1.6 m.What is the length of this telescope?


A) 8.0 m
B) 1.4 m
C) 0.90 m
D) 1.6 m
E) 1.8 m

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