Physics

Problem

A whistle produces a sound wave of wavelength

0.50\,\text{m}

in air where the speed of sound is

330\,\text{m/s}

. The same sound travels along an iron rod where the speed is

5940\,\text{m/s}

and then into seawater where the speed is

1500\,\text{m/s}

. What is the approximate ratio of the wavelength in iron to that in seawater? a)

1:4

1:1

4:1

3:2