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Gadiva
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Asked: 2021-09-23T07:03:28+00:00 In:

Infrasonic sound waves have frequency

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Poll Results

0%(a) 200 Hz
0%(b) 2000 Hz
0%(c) 20 Hz
100%(d) less than 20 Hz ( 10 voters )
Based On 10 Votes

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    1 Answer

    1. (d) less than 20 Hz

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