Q. Ultrasound which is upper limit of human hearing is characterized by which of the followingfrequencies?

  • (A) Above 20 KHz
  • (B) Above 200 KHz
  • (C) Above 2 KHz
  • (D) Below 20 KHz
✅ Correct Answer: (A) Above 20 KHz

Published by Bijay Kumar ⭐ 5.24K Points at 20-Apr-2022 04:19 pm in Physics

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