Q. Scattering of an ultrasonic beam is most pronounced when:

  • (A) Material grain size and wavelength are comparable
  • (B) Low frequency transducers are used
  • (C) Large wavelengths are used for ultrasonic testing
  • (D) None of the above
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✅ Correct Answer: (A) Material grain size and wavelength are comparable

Published by Mr. Dubey ⭐ 104.85K Points at 21-Sep-2023 07:19 pm in Non Destructive Testing and Evaluation

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