SOUND NEEDS A MEDIUM TO TRAVEL – InterviewSolution

1.	SOUND NEEDS A MEDIUM TO TRAVEL
Answer» That's becausesoundis a mechanical wave. ... In contrast, electromagnetic wavesrequirenomedium, but can still travelthrough one. Since a vacuum is defined as lacking amedium, thensoundand correspondingly, mechanical waves, cannot propagate through a vacuum. This is why we can't hear voices orsoundsin space.

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