What is the difference between a reflecting and a refracting telescope?
A. Both use a mirror to focus light, but a reflecting telescope uses mirrors elsewhere to bend light.
B. A reflecting telescope uses a lens to focus light; a refracting telescope uses a mirror.
C. A reflecting telescope uses a mirror to focus light; a refracting telescope uses a lens.
D. There is no difference. "Refracting" is an outmoded way of saying "reflecting."
Answer: C
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