Q. When an ultrasonic beam passes through the interface between two dissimilar materials at an angle, a new angle of sound travel is formed in the second material due to:

(A) Attenuation of ultrasound
(B) Transmission of ultrasound
(C) Compression of ultrasound
(D) Refraction

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✅ Correct Answer: (D) Refraction

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 07:19 pm in Non Destructive Testing and Evaluation

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