The large reflector, the 10 m Keck, gathers _ _ light than the 1.0 m Yerkes refractor.
A) an equal amount of
B) 100 times less
C) 10 times more
D) 100 times more
E) 10 times less

Question

Quizplus · Accepted Answer

The amount of light a telescope can gather is directly proportional to the area of its aperture. Since area is proportional to the square of the diameter, a 10 m telescope has an area 100 times greater than that of a 1 m telescope, thus it gathers 100 times more light.

The Large Reflector, the 10 M Keck, Gathers _ _