Velocity of sound in vacuum is \( \mathrm{p} \) (1) Equal to \( 330...

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Velocity of sound in vacuum is
\( \mathrm{p} \)
(1) Equal to \( 330 \mathrm{~m} / \mathrm{s} \)
(2) Greater than \( 330 \mathrm{~m} / \mathrm{s} \)
W
(3) Less than \( 330 \mathrm{~m} / \mathrm{s} \)
(4) None of these
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