Question

What is ultrasonic and infrasonic

Answer 1

Answer:

Ultrasound - Sound which has frequency above 20,000Hz.

Infrasound - Sound which has frequency below 20HZ.

Answer 2

Answer:

Infrasonic have a frequency lesser than 20 Hz.

Ultrasonic have frequency greater than 20 kHz.

Explanation:

• Infrasonic sound is the sound range that is below the lower limit of human hearing.

• That is, they have a frequency lesser than 20 Hz.

• Ultrasonic sound is the sound range that is above the upper limit of human hearing.

• That is, they have frequencies greater than 20 kHz.