Mathematics · Sound and Acoustics
The frequency of infrasonic waves is _________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Greater than 30,000 Hz
- 2Greater than 20,000 Hz
- 3Between 20 Hz and 20,000 Hz
- 4Less than 20 Hz✓
Correct answer
Less than 20 Hz
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