Electromagnetic radiation and B fields in EMR are in-phase (see math section below). An important aspect of light's nature is its frequency. The frequency of a wave is its rate of oscillation and is measured in hertz, the SI unit of frequency, where one hertz is equal to one oscillation per second. Light usually has multiple frequencies that sum to form the resultant wave. Different frequencies undergo different angles of refraction, a phenomenon known as dispersion. A wave consists of successive troughs and crests, and the distance between two adjacent crests or troughs is called the wavelength. Waves of the electromagnetic spectrum
The Wave 96.4 FM The Wave 96.4 FM 96.4 The Wave is a British Independent Local Radio station that serves the Swansea Bay area of West Wales. The station is owned by Wireless Group and mainly broadcasts chart and contemporary music, alongside news and local information, for an audience of under 40s. Initially broadcasting as 95.1 Swansea Sound on 30 September 1974, the station split into two separate services on 30 September 1995, creating a new music-led station called 96.4 Sound Wave when it moved its frequency from 95.1 FM to 96.4 FM, while Swansea Sound continued to broadcast on 1170 AM. The separate