PCN NDT Ultrasonic Testing Level 2 Exam Practice Questions - PCN NDT Ultrasonic Testing Level 2 Exam

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According to Snell's Law, when an ultrasonic wave passes from one medium to another at an angle, what can occur in addition to refraction?

The wave's frequency changes. The wave's amplitude increases. Mode conversion (e.g., longitudinal to shear wave). The wave's velocity remains constant.

Correct Answer:

Mode conversion (e.g., longitudinal to shear wave).

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