Question

Give reason sound cannot be heard in a vacuum

Answer 1

Explanation:

 the vacuum of space, there are no (or very, very few) particles to vibrate, so sound cannot travel through this medium. ... Radio waves travel perfectly fine through a vacuum because they are a type of electromagnetic wave (light), and electromagnetic waves do not need a medium to travel through.

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Answer 2

$\sf \blue{In \: the \:   \underline{vacuum}  \: of  \: \underline{space,}} \\ \sf \green{there \: are \: no \: particles \: to \: vibrate,} \\ \sf \purple{so  \: \underline{sound \: cannot} \:  travel} \\ \sf \red{ through \: this \: \underline{medium.}}$