Why use an interferometer?
A) Its two widely spaced mirrors act like one giant telescope with increased collecting area.
B) Its two widely spaced mirrors act like one giant telescope with increased resolving power.
C) By putting one mirror above the other you can make the instrument much smaller.
D) It can detect light at wavelengths not available to single telescopes.

Question

Quizplus · Accepted Answer

An interferometer uses widely spaced mirrors to simulate a larger aperture, which increases the resolving power, allowing it to distinguish finer details than a single telescope of the same size.

Why Use an Interferometer