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  • Ultrasound equipment works at frequencies not less than
Multiple choice

Ultrasound equipment works at frequencies not less than

  1. 500 Hz

  2. 10000 Hz

  3. 15000 Hz

  4. 20000 Hz

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ultrasound equipment works at frequencies not less than 20000 Hz.

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