What is the audible frequency range for the human ear?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 20–20,000 Hz.
The typical human ear can perceive sound frequencies ranging from 20 Hz to 20,000 Hz (or 20 kHz). Frequencies below 20 Hz are termed infrasonic, while those above 20,000 Hz are called ultrasonic. This range is most sensitive between 2,000 and 5,000 Hz, where human speech usually falls. As people age, their ability to hear higher frequencies gradually declines, a condition known as presbyacusis, often lowering the upper limit significantly.