You are using a browser that isn't supported by Facebook, so we have redirected you to definitely a less complicated Model to supply you with the finest practical experience. Cahaya ialah suatu gelombang elektromagnetik karena kecepatan gelombang elektromagnetik sama dengan kecepatan gelombang cahaya, yaitu sebesar three×108 m/s. Gelombang elektromagnetik tersebut https://lisaw763scm3.wikienlightenment.com/user