If ultraviolet light has a wavelength of 2.89 \times 10^{-8} m and infrared light has a wavelength of 8.2 \times 10^{-5} m, what is the difference in their frequencies? Which type of radiation has been shown to contribute to skin cancer? a. infrared b. UVC c. UVB d. visib...
Solar radiation reaching the earth surface is divided into infrared radiation, visible light, and UV; the latter is divided into three types according to wavelength: UVA (315–400 nm), UVB (280–315 nm), and UVC (100–280 nm), but 99% of the UV that reaches earth is UVA [42]. The...