Ultraviolet light has a shorter wavelength and higher frequency than visible light. Ultraviolet light has wavelengths between 10 and 400 nanometers (nm), while visible light has wavelengths between 400 and 700 nm. Because of this difference in wavelengths, ultraviolet light is usually invisible to a eye, while visible light can be seen in the familiar colors of the spectrum. Additionally, ultraviolet rays have more energy compared to visible light, making them harmful to living organisms if they are exposed to them in large amounts. On the other hand, visible light is essential for vision and plant growth through photosynthesis. Thus, D.