The velocity of electromagnetic radiation in free space (air) is the speed of light. It is c = 3 x 10⁸ m/s.
The broadcasting frequency is f = 101.7 mhz = 101.7 x 10⁹ hz.
Because velocity = frequency * wavelength, the wavelength of the radiation is
λ = c/f
= (3x10⁸ m/s)/(101.7x10⁹ 1/s)
= 2.95 x 10⁻³ m
= 2.95 mm
Answer: 2.95 mm
