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mikael mikael
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Posts: 12017
10 years ago
The objective lens of an astronomical telescope has a focal length of 60 cm and the eyepiece has a focal length of 2 cm. How far apart should the lenses be placed in order to form a final image at infinity? 
A) 44 cm 
B) 58 cm 
C) 76 cm 
D) 60 cm 
E) 62 cm 
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wrote...
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10 years ago
E) 62 cm 
mikael Author
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10 years ago
Thank you.
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