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Mr. Dubey • 52.33K Points
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Q. What are ultrasonic waves?

  • (A) Sound waves with a frequency higher than audiofrequency range
  • (B) Sound waves produced in vacuum
  • (C) Sound waves with a frequency shorter than audio frequency range
  • (D) None of these
  • Correct Answer - Option(A)
  • Views: 860
  • Filed under category Physics

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