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Mr. Dubey • 53.60K Points
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Q. Which of the following is the least efficient generator of ultrasonic waves:

(A) Quartz
(B) Lithium sulphate
(C) Lead metaniobate
(D) Barium titanate
  • Correct Answer - Option(A)
  • Views: 482
  • Filed under category Non Destructive Testing and Evaluation
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