When a water wave transitions from deep water into shallow water, state whether each of the following properties increases, decreases, or remains constant:

(i) The frequency of the wave.

(ii) The wavelength of the wave.

In a ripple tank, water waves travel from a region of deep water to a region of shallow water.

• The speed of the waves in the deep water is 0.45 m/s.
• The distance between successive wave crests (wavelength) in the deep water is 1.8 cm.
• In the shallow water, the speed of the waves is 0.30 m/s.

Calculate the wavelength of the waves in the shallow water.