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How much more light would a 10-meter-diameter telescope gather compared with one that is 2 m in diameter?
Wiki User
∙ 10y ago
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Vanessa Nader
Wiki User
∙ 10y agoHere we are comparing the light collecting area of two lenses or mirrors.
The area of our 2m mirror is pi r2, which works out at pi x 22, = 12.57m2.
The area of our 10m mirror is pi x 102 = 314,16m2. A much larger area.
or more simply, the ratio of the two numbers squared, = 102/22 = 100/4 = 25 times.
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