REL
[[파동,wave]]
[[전자기파,electromagnetic_wave]]
[[가시광선]] Ndict:가시광선
[[레이저,laser]]
[[복사,radiation]]
[[물리학,physics]] or [[물리,physics]]
esp
[[광학,optics]]
[[색,color]]
[[에너지,energy]]


KpsE:light
KpsK:빛