E
Editor
Sep 18, 2022
Speed of sound in vacuum is :
Difficulty: Easy
A:
$\rm{340\,ms^{-1}}$
B:
$\rm{3 \times 10^{8}\,ms^{-1}}$
C:
$\rm{4000\,ms^{-1}}$
D:
None of these
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ID: 63273db8ca83163ac3a0fa17