Question

how do you say that sound required a medium to propagate

Answer 1

$\huge\red{As-Salamu-Alykum}$


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》Sound waves are longitudinal waves.

》Longitudinal waves are those that require medium .

》 Longitudinal waves move in form of

Compression -->Rarefaction --> Compression--> Rarefaction


So if there is no medium how will compression and Rarefaction form and how will sound move .

Thats why we say sounds waves need medium for propagation .


《Sound waves in Vaccum = 0》

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$\huge\green{INSHALLAH\;it\;will\;help\;U}$

Answer 2

Answer:

Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves.