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Question

What are infrasonic sounds?


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Solution

  1. Sound is a form of energy that provides the sensation of hearing in our ears.
  2. Sound propagates in the form of a wave.
  3. The number of sound waves passing through a point in the medium in one second is called the frequency of the sound wave.
  4. It is measured in Hertz (Hz).

Infrasonic sounds:

  1. The sound waves, having frequencies below 20Hz are called infrasonic sounds.
  2. Human beings can not hear an infrasonic sound.
  3. Animals like elephants produce rumbling sounds of low frequency (14Hz).

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