What defines the distance between two successive peaks of radiation?

The distance between two successive peaks of radiation is defined as the wavelength. Wavelength is a fundamental concept in the study of waves, including electromagnetic radiation. It represents the physical length of one complete wave cycle, measured from peak to peak (or trough to trough).

Understanding wavelength is crucial in various fields, including physics and communication technologies, as it affects the properties and behavior of waves. For instance, in the case of visible light, varying wavelengths correspond to different colors, while in radio waves, longer wavelengths result in lower frequencies.

Other concepts such as frequency, amplitude, and intensity relate to different properties of waves. Frequency refers to how many cycles occur in a given time period; amplitude indicates the height of the wave and is associated with energy levels; intensity is related to the power transmitted per unit area. While these characteristics are important, they do not define the distance between the peaks of radiation, which is specifically captured by the term wavelength.