How long are X- ray wavelengths compared with ultraviolet wavelengths?

Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, that is, in the range 10 nm to 400 nm, corresponding to photon energies from 3 eV to 124 eV (1 eV = 1.6e-19 J; EM radiation with frequencies higher than those of visible

answer; ///(b) it is composed of four protein chains and four heme groups;