Question

What is the range of frequencies associated with infrasound and ultrasound?

Answer 1

Infrasound and Ultrasound:

1. The frequency of infrared sound oscillates between one and twenty cycles per second.
2. Natural (large sea waves, wind, thunder, earthquake, volcanic eruption, etc.) or artificial (usually related to industrialization: rotating machines, punching machines, transportation, or explosions) noise sources can produce infrasound.
3. The frequencies of infrared sound are lower than 20 hertz.
4. Ultrasound, like infrared, has frequencies that humans are unable to detect.
5. Infrared has a wide range of industrial applications.
6. The frequency of ultrasound exceeds 20,000 hertz.