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 Crests 24, 2014, at his home in Flint, Michigan. He was 74. The Crests were inducted into the United in Group Harmony Association (UGHA) Hall of Fame in 2000. The Crests were inducted into The Vocal Group Hall of Fame in 2004. The Crests were inducted into The Doo Wop Hall of Fame in 2008. The Crests were inducted into The Doo Wop Music Hall of Fame in 2015. On May 9, 2012, Johnny Maestro was honored by the House of Representatives of the United States of America. Congressman Jerrold Nadler of New York, whose district includes the neighborhood where Maestro