How are frequency and wavelength related? if frequency increases, what happens to the wavelength of a wave?

Frequency and wavelength are inversely related. This means that as frequency increases, wavelength decreases.

This relationship can be explained by the formula:

Speed of wave = frequency x wavelength

Since the speed of the wave remains constant, if the frequency increases, the wavelength must decrease in order to maintain the same speed. Similarly, if the frequency decreases, the wavelength will increase.