“What form of radiation can your eyes detect? sir, please answer this question”
Normal Human Eyes can sense the visible spectrum only.
“The visible spectrum is the portion of the electromagnetic spectrum that is visibleto (can be detected by) the human eye. Electromagnetic radiation in this range ofwavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 390 to 750 nm. In terms of frequency, this corresponds to a band in the vicinity of 400–790 THz.” ———– Wikipedia