Question 43
MediumOriginal questionElephants and whales communicate over long distances with sounds of frequency below 20 Hz. Such sounds are called
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
Sound below the human audible range of 20 Hz is infrasonic.
Ultrasonic sound lies above 20,000 Hz.
Worth noting
Supersonic describes speed faster than sound, such as a fighter jet, not a frequency range.
- Concept
- Infrasound
- Typical timeTypical
- 60 s
- Your timeYours
- —
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