In a radio telescope, the role that the mirror plays in visible-light telescopes is played by:
A) a spectrometer
B) an interferometer
C) computer software
D) a special kind of lens
E) a large metal dish (antenna)

Question

Quizplus · Accepted Answer

In a radio telescope, the role that the mirror plays in visible-light telescopes is played by a large metal dish (antenna). The metal dish collects the radio waves and reflects them onto a receiver, which detects and analyzes the signal.

In a Radio Telescope, the Role That the Mirror Plays