Which of the following does not allow sound propagation?


Sound cannot travel through vacuum. It needs a material medium to propagate.

What is sound?

Sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid, or solid, and it is a source of energy like electricity, heat, or light.

A medium is essential for the propagation of sound. Sound cannot travel through a vacuum because there are no molecules that can be compressed and expanded in space.

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