You would like to see through the dust in a cloud to find protostars. Which band of the electromagnetic spectrum would you need to look in
A)infrared
B)visual
C)UV
D)X-ray

Question

Quizplus · Accepted Answer

Dust in a cloud can block visible light, but infrared light can penetrate the dust and be detected. Protostars radiate strongly in the infrared range, making it the best choice to look for them through the dust. UV and X-ray radiation can also penetrate the dust, but they are more likely to be absorbed by the gas and dust in the cloud before reaching the protostars.

You Would Like to See Through the Dust in a Cloud