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HomeCBSE Class 9physicssoundwaves › The human audible frequency range is approximate…

The human audible frequency range is approximately:

A20 Hz to 20,000 Hz
B0 to 20 Hz
C20,000 Hz to 1 MHz
DUp to 1 Hz only
Answer & Solution
Correct answer: A. 20 Hz to 20,000 Hz
Healthy young humans can hear frequencies from about 20 Hz to 20,000 Hz (20 kHz). This range narrows with age — higher frequencies are typically the first to go. Sounds below 20 Hz are infrasonic; above 20 kHz are ultrasonic — both inaudible to humans, though many animals (bats, dogs, elephants) can detect them.
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