Answer:
The velocity of a water wave depends on the properties of the medium through which it is propagating, such as the density and elasticity of the medium. It does not depend on the wavelength of the wave.
Therefore, if the wavelength of a water wave decreases, its velocity does not change. However, the frequency of the wave will increase, as frequency and wavelength are inversely proportional to each other for a wave with a constant velocity. This means that more waves will pass through a given point in a unit of time, which can affect other properties of the wave, such as its intensity and energy.