Q334
Which one of the following statements is not correct?
A.
Ultrasonic waves cannot get reflected, refracted or absorbed
AnswerB.
Ultrasonic waves are used to detect the presence of defects like cracks, porsity, etc in the internal structure of common structure materials
C.
Ultrasonic waves can be used for making holes in very hard materials like diamond
D.
Ultrasonic waves cannot travel through vacuum
Answer: Option A
Solution
Answer: Option A
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