Physics

Problem

A sound of frequency

850\,\text{Hz}

travels from air into water. The speed of sound is

340\,\text{m\,s}^{-1}

in air and

1480\,\text{m\,s}^{-1}

in water. What is the ratio of its wavelength in water to that in air? a)

0.23

4.35

1.00

2.50