Question

a particular am radio station broadcasts at a frequency of 1040 kilohertz. what is the wavelength of this electromagnetic radiation?

Answer 1

1040 Kilohertz = 1.04E6 /sec

Speed of electromagnetic waves = 3.00E8 m/s

3.00E8 / 1.04E6 = 288 m (a λ/4 antenna still requires 72 m)