Describe about audible, infrasonic and ultrasonic waves
Answers
Answer:
Explanation:
Audible sound waves whose frequencies are less than 20 Hz are in the infrasonic range. ... Human Ear cant hear this sound but elephants and whales can hear this. Frequencies above 20,000 Hz are in the ultrasonic range. The audible range of dogs, cats, moths and mice extends into ultrasound frequencies.
Answer:
Hint: Frequency less than 20Hz is infrasonic, frequency greater than 20,000Hz is ultrasonic, 20Hz to 20,000Hz is audible range for the human ear.
Complete step by step solution:
Infrasonic sound wave:
An audible sound wave whose frequency is less than 20Hz is in the infrasonic range. The human ear can not hear this sound but elephants and whales can hear this.
Ultrasonic sound wave:
The frequency above 20,000Hz is in the ultrasonic range. The audible range of dogs, cats extends to ultrasound frequencies. They can hear very high frequencies that humans cannot.
Audible:
The human ear can easily listen to frequencies between 20Hz and 20,000Hz. Hence sound waves with frequencies ranging from 20Hz to 20,000Hz is known as audible sound. The human ear is sensitive to every minute pressure difference in the air if they are in the audible frequency range. It can detect pressure differences less than one billionth of atmospheric pressure.