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staedtler staedtler
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7 years ago
A Cassegrain reflecting telescope is constructed using a
A)   concave primary mirror followed by a smaller convex secondary mirror that reflects light back through a hole in the primary mirror.
B)   curved primary mirror followed by a series of both plane and curved mirrors that channel the light to a remote location fixed with respect to the Earth.
C)   concave primary mirror and concave secondary mirror that reflects light back through a hole in the primary mirror.
D)   concave primary mirror and a flat, diagonal secondary mirror mounted at a 45° angle to the telescope axis.
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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staedtler Author
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6 years ago
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