Why are sound waves called mechanical waves?
Asked by | 19th Jan, 2010, 04:19: PM
Because they need a material material medium, like solid, liquid, gas for their propogation, while electromagnetic waves can propogate through vacuum, they don't need any material medium.
They are called non-mechanical waves.
We can't hear a sound in space because of the vacuum.
Answered by | 19th Jan, 2010, 04:44: PM
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