A new generation of ground-based telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes
A)use segmented mirrors.
B)use mirrors that are very thin.
C)use active optics to control the shape of the mirror.
D)All of the other choices are correct.
E)None of the other choices are correct.

Question

Quizplus · Accepted Answer

The new generation of ground-based telescopes use advanced technologies such as segmented mirrors, thin mirrors, and active optics to overcome limitations of the older large telescopes. Therefore, choice D, which states that all the other choices are correct, is the best choice.

A New Generation of Ground-Based Telescopes Is Currently Being Built