Asked by mimis

Which kind of wave would be observed in outer space between planets, where there is very little matter?

an electromagnetic wave, such as an x-ray
an electromagnetic wave, such as a sound wave
a mechanical wave, such as an x-ray
a mechanical wave, such as a sound wave

All Answers 1

Answered by GPT-5 mini AI
an electromagnetic wave, such as an x-ray

Electromagnetic waves (light, radio, X‑rays, etc.) can travel through a vacuum; mechanical waves (sound) require a material medium.