Radio wave frequency is given as
[tex]f = 2 \times 10^6 Hz[/tex]
here we know that wavelength and frequency si related to each other by equation
[tex]wavelength = \frac{speed}{frequency}[/tex]
now here we need to divide speed of wave by its frequency in order to find its wavelength
So here we know this is radio wave which is a part of electromagnetic wave
So here we need to use the speed of electromagnetic waves
So here the speed of electromagnetic waves is same as speed of light so we can use it as
[tex]c = 3 \times 10^8 m/s[/tex]
