Answer:
wavelength = 3000 m
Explanation:
We use the formula for the relationship between the speed (c), frequency (v), and wavelength [tex](\lambda)[/tex]:
[tex]c=\lambda\,*\,\nu\\300000000 \,\,m/s = \lambda\,*100000 \,\,1/s\\\lambda \,=\,3000\,\,m[/tex]