An ultrasound pulse is sent into a steel rod

PHYSICS · Subjective · CBSE · Physics · Sound · Sound

Problem

An ultrasound pulse is sent into a steel rod. The speed of sound in steel is

6000\,\text{m/s}

. The echo from a flaw inside the rod returns after

4.0\times10^{-4}\,\text{s}

. Calculate the depth of the flaw below the rod’s surface.