Multiple Choice
An achromatic lens
A) is used to correct spherical aberration in reflecting telescopes.
B) is used to correct chromatic aberration in refracting telescopes.
C) is used to correct spherical aberration in refracting telescopes.
D) is used to correct chromatic aberration in reflecting telescopes.
E) contains two mirrors and focuses the light back through the primary mirror.
Correct Answer:
Verified
Correct Answer:
Verified
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