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: (A) Sound waves with a frequency higher than audiofrequency range

Published by Mr. Dubey ⭐ 111.42K Points at 10-Nov-2021 08:02 am in Physics

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