Wavelength, denoted by the symbol \lambda, is the distance between consecutive peaks or troughs in a wave. It is a fundamental property of all types of waves, including sound, light, and water waves. Wavelength is typically measured in meters and is inversely related to frequency; as the wavelength increases, the frequency decreases. In the context of electromagnetic radiation, such as visible light, different wavelengths correspond to different colors. For example, red light has a longer wavelength than blue light. Understanding wavelength is essential in various fields, including physics, engineering, and telecommunications, as it influences how waves interact with matter.