About: http://webisa.webdatacommons.org/386940071

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Light is an electromagnetic wave, so there is no problem assigning it a frequency and a wavelength.
http://www.w3.org/ns/prov#wasQuotedFrom	physicsforums.com