What is the main reason for using several radio telescopes together as an interferometer?
A) to obtain much better angular resolution or sharpness in the images
B) to ensure that at least one of the telescopes is in a radio-interference-free zone
C) to collect more radiation from very faint sources
D) to ensure that observations are uninterrupted by the failure of one or two telescopes

Question

Quizplus · Accepted Answer

Interferometry, which involves using multiple radio telescopes together, primarily enhances angular resolution or sharpness in the images. This technique allows astronomers to achieve much finer detail in their observations than could be obtained with any single telescope.

What Is the Main Reason for Using Several Radio Telescopes