which type of electromagnetic waves has the shortest wavelength?\na. radio\nb. infrared\nc. ultraviolet\nd…

Brief Explanations:

In the electromagnetic - spectrum, radio waves have long wavelengths, infrared is longer - wavelength than visible light, and visible light is longer - wavelength than ultraviolet. Gamma rays and X - rays have even shorter wavelengths than ultraviolet, but among the given options, ultraviolet has the shortest wavelength.

Answer:

C. Ultraviolet