The 21-centimeter line is one of the most important wavelengths in radio astronomy.Its relatively long wavelength is important because long wavelengths
A) are more likely to interact with clouds of gas and dust.
B) are more likely to pass through clouds of gas and dust.
C) carry more information than short wavelengths of the same energy.
D) can be detected with greater resolution than short wavelengths.

Question

Quizplus · Accepted Answer

Long wavelengths are more likely to pass through clouds of gas and dust compared to short wavelengths, making them ideal for observing objects behind such obstructions in space.

The 21-Centimeter Line Is One of the Most Important Wavelengths