UV Radiation Ultraviolet light is typically divided into three categories. UV-A, with wavelengths between 400 nmnm and 320 nmnm, has been linked with malignant melanomas. UV-B radiation, which is the primary cause of sunburn and other skin cancers, has wavelengths between 320 nmnm and 280 nmnm. Finally, the region known as UV-C extends to wavelengths of 100 nmnm. Required:
Find the range of frequencies for UV-B radiation. Express your answers using three significant figures separated by a comma.