Frequencies higher than the human audible limit of 20,000 Hz are classified as _____.
Ultrasound
The normal range of human hearing lies between about 20 Hz and 20,000 Hz.
Sound waves with frequencies above the upper audible limit of 20,000 Hz are called ultrasound and cannot be heard by the human ear.
Infrasound refers to frequencies below 20 Hz, while the term supersonic describes speeds greater than the speed of sound rather than a frequency of sound.
Hence, frequencies higher than 20,000 Hz are classified as Ultrasound.
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Important Questions from Wave
Which one of the following statements is true for sound waves propa- gating in air?
Which one of the following optical phenomena supports that the light is a transverse wave?
Which of the following is the horizontal distance between two successive crests?
Which of the following statements is correct?
What is the correct order of radiations in descending order of frequencies?
