Which one of the following frequency ranges is sensitive to human ears

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Which one of the following frequency ranges is sensitive to human ears ?

0 – 200 Hz
20 – 20,000 Hz
200 – 20,000 Hz only
2,000 – 20,000 Hz only
This question was previously asked in
UPSC NDA-1 – 2018
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The correct answer is B) 20 – 20,000 Hz.
The typical range of frequencies that the human ear can perceive is from approximately 20 Hertz (Hz) to 20,000 Hertz (or 20 kilohertz, kHz). Sounds with frequencies below 20 Hz are called infrasound, and those above 20,000 Hz are called ultrasound; neither is audible to humans under normal conditions. While the sensitivity varies significantly with age (higher frequencies are often less audible as people get older), the range 20-20,000 Hz represents the general limits of human hearing.
The human ear is most sensitive to frequencies between 1,000 Hz and 4,000 Hz. The ability to hear high frequencies tends to decrease with age, a phenomenon known as presbycusis. Other animals have different hearing ranges; for example, dogs can hear much higher frequencies than humans (up to 45,000-65,000 Hz).

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