Answer:
The answer is 0.1.
Step-by-step explanation:
The relationship between wavelength [tex]x[/tex] and frequency[tex]y[/tex] is:
[tex]y=\frac{3*10^8}{x}[/tex].
We solve this equation for wavelength [tex]x[/tex] and get:
[tex]x=\frac{3*10^8}{y}[/tex].
Now when the frequency of radio waves is [tex]3*10^9[/tex], then the wavelenght is:
[tex]x=\frac{3*10^8}{y}=\frac{3*10^8}{3*10^9}=10^{-1}=0.1[/tex].
Thus, when frequency of radio waves is [tex]3*10^9[/tex], then the wavelength is 0.1.
