Ultrasonic: Difference between revisions
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Ultrasonic (or Ultrasound) is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz). (Wikipedia) | Ultrasonic (or Ultrasound) is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz). (Wikipedia) | ||
[[Category:Basic Laboratory]] | |||
[[Category:Ultrasonic]] | [[Category:Ultrasonic]] | ||
Revision as of 17:59, 28 June 2011
Ultrasonic (or Ultrasound) is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz). (Wikipedia)
