Carl has a 5-inch refracting telescope, and Jim has a 3-inch reflecting telescope. Whose telescope has a higher light-gathering power?

A. Carl's, because lenses gather more light.
B. Carl's, because the larger the diameter, the more light to be collected.
C. Jim's, because the smaller the diameter, the more light to be collected.
D. Jim's, because mirrors gather more light.


Answer: B

Physics & Space Science

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