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22. when a sound can be heard it is called? (a) decibel (b) ultrasound (c) audible (d) rarefaction 23. what are the audible range of

Question

22. When a sound can be heard it is called? (A) Decibel (B) Ultrasound (C) Audible (D) Rarefaction 23. What are the audible range of frequencies for the human ear? (A) Below 20 Hz (B) Between 20 and 20000 Hz (C) Above 20 Hz (D) All frequencies 24. What terms describes sounds with frequencies that are lower than 20Hz (A) Infrasonic (B) Subsonic (C) Supersonic (D) Ultrasonic

Answer

4.2 (373 Votes)
Verificación de expertos
Zeke Master · Tutor for 5 years

Answer

22. C Audible23. B Between 20 and 20000 Hz24. A Infrasonic

Explanation

## Step1:Identify the term used to describe a sound that can be heard by the human ear.## Step2:Recognize the range of frequencies that the human ear can hear.## Step3:Determine the term that describes sounds with frequencies lower than 20 Hz.