Water waves have a frequency of and a wavelength of in shallow water

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

Water waves have a frequency of

5\,\text{Hz}

and a wavelength of

0.40\,\text{m}

in shallow water. When the waves enter deeper water, their speed becomes

3\,\text{m/s}

. What is the new wavelength in deep water? (a)

0.27\,\text{m}

(b)

0.40\,\text{m}

(c)

0.60\,\text{m}

(d)

0.50\,\text{m}