Physics, asked by chaudhuriarghya511, 1 year ago

Why normal sound is not used to detect flaws in metal blocks and why ultrasound?

Answers

Answered by ishandey1000

1

The ultrasound waves are allowed to pass through metal block to which are fitted detectors to detect the waves. If the metal block has a very small defect, such as an air bubble or a crack, then the ultrasound waves are reflected from such spots. The reflected ultrasonic waves indicates that metal block is defective.

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