Speed of sound in the plastic


Ultrasound can be used to measure the thickness of protective coatings applied to surfaces as part of industrial processes because it reflects well from boundaries separating regions with different densities. How thick is a layer of plastic coating on a metal substrate that produces ultrasound echoes from the upper and lower surfaces having round-trip times that differ by 0.75us. Assume the speed of sound in the plastic is 900 m/s.

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Physics: Speed of sound in the plastic
Reference No:- TGS0132367

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