Question 19What is the frequency of a radio wave of wavelength 150m if the velocity of radio waves in free space is 3 x \(10^8ms^{-1}\)?A.4.5 x \(10^{10}\)HzB.5x \(10^{9}Hz\)C.4.5 x \(10^{8}Hz\)D.2 x \(10^{7}Hz\)E.2 x \(10^{6}Hz\)Objective Show full explanation