How Much More Light Will A 10 Meter Diameter Telescope Collect Than A 2 Meter Telescope? [Solved]

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How Much More Light Will A 10 Meter Diameter Telescope Collect Than A 2 Meter Telescope? [Solved]

Purposes. Collect more light: in order to detect fainter objects. This is the most important function of telescopes. Thus, a 10-in diameter telescope collects (10/5)2 = 22 = 4 times as much light as a 5-in telescope.

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