Multiple Choice
Which has the larger light-gathering power
A) a telescope of 5 cm diameter and focal length of 50 cm
B) a telescope of 6 cm diameter and focal length of 100 cm
C) a telescope of 2 cm diameter and focal length of 100 cm
D) a telescope of 3 cm diameter and focal length of 75 cm
E) both b and c since they have the same focal length.
Correct Answer:
Verified
Correct Answer:
Verified
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