Physics

Problem

Water waves of frequency

5\,\text{Hz}

travel with speed

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

in a shallow region. They then enter a deep region where their speed is

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

. What is the wavelength of the waves in the deep region? a)

0.20\,\text{m}

1.25\,\text{m}

0.80\,\text{m}

0.40\,\text{m}