In contrast to visual light telescopes,radio telescopes are important in astronomy because they
A) can detect cool hydrogen.
B) have high magnification.
C) can detect stars
D) detect electromagnetic radiation
E) can detect blue light

Question

Quizplus · Accepted Answer

Radio telescopes are important because they can detect cool hydrogen, which emits radio waves, allowing astronomers to study regions of space that are not visible in optical wavelengths.

In Contrast to Visual Light Telescopes,radio Telescopes Are Important in Astronomy