Answer
2.959 m or $2.959\times10^{9}nm$
Work Step by Step
Frequency, ν = 101.3 MHz = $101.3\times10^{6}s^{-1}$
Speed of the radiation, c = $2.997925\times10^{8}ms^{-1}$
Wavelength, λ= c/ν = $\frac{2.997925\times10^{8}ms^{-1}}{101.3\times10^{6}s^{-1}}$ = 2.959 m
In nanometers,
2.959 m = $2.959\times(10^{9}\times10^{-9})m$ = $2.959\times10^{9}(10^{-9}m)$ =$2.959\times10^{9} nm$ (The prefix 'nano' stands for $10^{-9}$).
