Question
The light-gathering power of a 4 -meter telescope is ________________ than that of a 2 -meter telescope.a. 8 times largerb. 4 times largerc. 16 times smallerd. 2 times smaller
Step 1
The area of a circle is given by the formula $\pi r^2$, where $r$ is the radius of the circle. In this case, the radius is half of the diameter of the telescope. Show more…
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