The objective of most radio telescopes is similar to the objective of a reflecting optical telescope in that
A) they are both concave in shape.
B) they are both convex in shape.
C) they are typically the same size.
D) they are both made of metal.
E) they have nothing in common.

Question

Quizplus · Accepted Answer

Both radio telescopes and reflecting optical telescopes use a concave shape to gather and focus incoming radiation, whether it be radio waves or visible light.

The Objective of Most Radio Telescopes Is Similar to the Objective