Physics, asked by gulnazfaatima2920, 1 year ago

Why can't we use ordinary sound waves to detect flaws in a metal block?

Answers

Answered by arya6907

2

Ultrasounds can be used to detectcracks and flaws in metal blocks. ... Ultrasonicwaves are allowed to pass through the metallicblock and detectors are used to detect the transmitted waves. If there is even a small defect, the ultrasound gets reflected back indicating the presence of the flaw or defect.

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gulnazfaatima2920: But why ultrasound why not an ordinary sound?

kingkanish54: ultra sound waves get reflected with the obstruction of metal

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