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staedtler staedtler
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7 years ago
Spherical aberration can be corrected or avoided in a reflecting telescope by
A)   grinding the mirror to a more accurate spherical curve.
B)   grinding the mirror to a parabolic shape.
C)   using light of only one color.
D)   grinding the mirror to an elliptical shape.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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hyponoticahyponotica
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7 years ago
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