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symbo symbo
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Posts: 1970
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7 years ago
Which of the following optical elements or combinations makes up a Newtonian telescope?
A)   Two curved mirrors, one concave, the second convex
B)   Two lenses, to produce an image the correct way around
C)   One concave and one flat mirror
D)   One concave focusing mirror
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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7 years ago
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symbo Author
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7 years ago
Very informative, I appreciate the extra effort
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