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Tsync Tsync
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Posts: 3450
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8 years ago
The design of modern X-ray telescopes depends on:
A) the Cassegrain design, with mirrors made of lead.
B) grazing incidence optics.
C) lenses made of germanium.
D) achromatic lenses to keep the X-rays in focus.
E) the prime focus design, with mirrors made of iron.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 178 times
3 Replies
Minoring in physics
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RatatouilleRatatouille
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Posts: 3710
8 years ago
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Tsync Author
wrote...
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
wrote...
8 years ago
Slight Smile
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