(c) 20 Hz – 20 kHz
Reason — The audible frequency range of sound for the average human ear is generally considered to be between 20 Hz and 20 kHz. It is called the sonic or audible sound.
(c) 20 Hz – 20 kHz
Reason — The audible frequency range of sound for the average human ear is generally considered to be between 20 Hz and 20 kHz. It is called the sonic or audible sound.
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