An Ultrasonic sound wave is used to detect the position of defect in a steel bar of thickness 50 cm. if the echo times are 40 and 90 ?-sec. Locate the position of defect.

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written 3.0 years ago by

teamques10 ★ 65k

modified 2.2 years ago by

pedsangini276 • 4.8k

engineering physics

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1 Answer

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written 3.0 years ago by

teamques10 ★ 65k

Given –

$d_2=50cm$

$\Delta t_1=40 \mu sec, \Delta t_2=90 \mu sec$

Solution –

Let $d_1$ be the location of defect & $d_2$ be the thickness of steel bar.

Let $\Delta t_1$ be echo time from defect & $\Delta t_2$ be the echo time for rod.

Now, we know that,

$d=\dfrac …

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