A telescope with an 8- inch mirror will collect twice as much light as one with a 4- inch mirror.

Name: A telescope with an 8- inch mirror will collect twice as much light as one with a 4- inch mirror.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The amount of light a telescope can collect is proportional to the area of its mirror, which is calculated using the formula for the area of a circle (πr^2). Doubling the diameter of the mirror from 4 inches to 8 inches actually increases the light-collecting area by a factor of four, not two.

A Telescope with an 8- Inch Mirror Will Collect Twice