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Dadhikra
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Asked: 2021-10-07T07:07:34+00:00 In:

Speed of sound in air at 20 °C is about

  • 8

Poll Results

0%(a) 3x10⁸m / sec
12.5%(b) Changes with time ( 1 voter )
87.5%(c) 343 m / sec ( 7 voters )
0%(d) 340 km / sec
Based On 8 Votes

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    1 Answer

    1. (c) 343 m / sec

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