Question

In what way does a 30 meter telescope outperform a 10 meter telescope? A. All objects observed by the 30 meter telescope will appear larger than those of the 10 meter B. The 30 meter can observe light with a wavelength 3 times longer than that of the 10 meter C. The images of the 30 meter are 3 times brighter than those of a 10 meter. D. The images of the 30 meter are 9 times brighter than those of a 10 meter. E. The images of the 30 meter are 1/3rd as large as those of a 10 meter.

Answer 1

D

Step-by-step explanation:

The LIGHT GATHERING ability of a telescope is defined by its area

a 30 meter scope has an area of 225 pi the 10 m scope has an area of 25 pi so the 30 m scope can gather 9 times more light