Multiple Choice
The secondary mirror of a telescope whose primary mirror is 4 m in diameter has a diameter of 0.5 m. What fraction of the incoming light is obstructed by this secondary mirror?
A) about 1.6%
B) about 1/8, or 12.5%
C) about 35%
D) about 16%
Correct Answer:
Verified
Correct Answer:
Verified
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