What is the wavelength of visible spectrum:A. 1300-3000AB. 3900-7600AC. 7800-8000AD. None of these 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Label {} [+] Name* Email* 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments
