Sound wave is a mechanical wave, which means, unlike light, it needs a medium for propagation.

True

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False

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Solution

The correct option is A
True

Sound waves always need a medium to propagate. The propagation of sound is dependent on gradual compressions and rarefactions of the particle of the medium.

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Sound wave is a mechanical wave, which means, unlike light, it needs a medium to travel.

Sound wave needs a medium for its propagation.

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