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.
Which one of the following frequency ranges is sensitive to human ears ?
Asked in UPSC NDA 1 2018 · Topic: Sound (The Human Ear: Structure and Mechanism of Hearing)
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