Question

What do infrasound and ultrasound refer to?​

Answer 1

Answer:

Explanation:

Explaining the terms infrasound and ultrasound, used for vibrations that we cannot hear. ... Beyond what we can hear there is: Infrasound, where the rate of vibration is too low for us to hear. Ultrasound, where the rate of vibration is too high for us to hear.

Answer 2

• Ultrasound and infrasound differ from "regular" noises in three ways that have an impact on the rest of this chapter's discussion.
• The first and most evident feature of these sound types is that they are "extreme" frequencies that lie beyond the human ear's usual response curve and are hence inaudible.
• Ultrasound, which contains physiologically important noises ranging from 15 kHz to 200 kHz, has a frequency that is too high. Infrasound is excessively low in frequency, stretching from around 20 to 0.1 Hz or less.
• In all situations, sophisticated apparatus are required simply to identify the signals, which only adds to the allure of studying them.
• When the right technology is used, it is feasible to witness events that are widespread in nonhuman animals but were previously unknown.