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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