science
Grade6
Easy

Question

Sound with 25000 HHz frequency is called _______.

  1. Ultrasound
  2. Infrasound
  3. Audible sound
  4. None

Hint:

Ultrasound ave frequencies 20,000Hz and above

The correct answer is: Ultrasound


    • Sounds that have frequencies 20,000Hz and above are called Ultrasound.
    • It is sound waves with frequencies higher than the upper audible limit of human hearing.

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