Question

Which of these forms of radiation passes most easily through the disk of the Milky Way?

1 - red light
2 - blue light
3 - infrared light

Answer 1

Answer: 3 - infrared light

Step-by-step explanation:

There are certain areas of the Milky Way that cannot be observed using the visible range of the electromagnetic spectrum (this includes blue light and red light). This is because these areas are covered or hidden behind columns of interstellar dust and dark matter.

However, using infrared light and sometimes radio waves, it is possible to observe the galaxy better, because this light manages to pass through all that interstellar dust.