Multiple choice

Sounds having different frequencies are listed below. Which of the following sounds will be inaudible?

  1. 10 kHz

  2. 18,000 Hz

  3. 15 Hz

  4. 25 Hz
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For a human ear, the range of audible frequency is from 20 to 20,000 Hz. Sounds of frequencies less than 20 Hz and higher than 20 kHz (i.e. 20,000 Hz) are inaudible to the human ear.

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