If your pupils have a diameter of about 5 mm, about how many times more light gathering power does a telescope with a diameter of about 20 cm (8 inches) have than your pupils?
A) 4 times
B) 16 times
C) 40 times
D) 160 times
E) 1,600 times

Name: If your pupils have a diameter of about 5 mm, about how many times more light gathering power does a telescope with a diameter of about 20 cm (8 inches) have than your pupils? A) 4 times B) 16 times C) 40 times D) 160 times E) 1,600 times
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Question

Quizplus · Accepted Answer

The Answer is E

If Your Pupils Have a Diameter of About 5 Mm