Sound requires a medium to travel .

the medium

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the particles of the medium

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Solution

The correct option is A the medium
A sound wave needs a medium to travel. A sound wave travels in the form of a longitudinal wave and it requires a material medium for its propagation. Sound always originates from some vibrating body.

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Similar questions

Complete the following sentences :

(a) Sound can not travel through ___, but it requires a ___ .

(b) When sound travels in a medium, the particles of medium ___ but the disturbance ___ .

(d) A transverse wave is composed of crest and ___ .

(e) Wave velocity = ___ x wavelength.

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