Physics
Infrasonic sound waves have a frequency :
- between 20 Hz to 10,000 Hz
- below 20 Hz
- above 20,000 Hz
- between 20 Hz to 20,000 Hz
Sound
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Answer
below 20 Hz
Reason — Infrasonic sound waves have a frequency below 20 Hz.
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Related Questions
To detect the obstacles in their path, bats produce:
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- they travel undeviated through a long distance
- they have a speed greater than the speed of sound in a medium
- they are not easily absorbed in a medium
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- 33.3 Hz
- 100 Hz
- 1000 Hz
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