How does the light- collecting area of an 8- meter telescope compare to that of a 2- meter telescope?
A)The 8- meter telescope has 8 times the light- collecting area of the 2- meter telescope.
B)The 8- meter telescope has 4 times the light- collecting area of the 2- meter telescope.
C)The answer cannot be determined from the information given in the question.
D)The 8- meter telescope has 16 times the light- collecting area of the 2- meter telescope.

Question

Quizplus · Accepted Answer

The light-collecting area of a telescope is proportional to the square of its diameter, so the ratio of areas is (8/2)^2 = 64/4 = 16. Therefore, the 8-meter telescope has 16 times the light-collecting area of the 2-meter telescope.

How Does the Light- Collecting Area of an 8- Meter