Visible range of electromagnetic spectrum of human eye-: (A) 370 - 740 nm, (B) 740 -1140 nm, (C) 200 - 370 nm, (D) 570 - 770 nm
Answer is A. As perceived by the human eye; light consists of there wavelengths of electromagenatic radiation (approximately 400-700 mm) which are capable of eliciting retinal response.