The relationship between wavelength and frequency in waves is described by their inverse correlation; as one increases, the other decreases. This relationship is expressed through the equation \(v = f\lambda\), where \(v\) is wave speed, \(f\) is frequency, and \(\lambda\) (lambda) represents wavelength. For instance, in electromagnetic waves, longer wavelengths correspond to lower frequencies, while shorter wavelengths have higher frequencies. This fundamental principle is crucial in various scientific fields, including physics, acoustics, and telecommunications.