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radio station broadcasts its AM signal at frequency of 1240khz.whats the wavelength in metres
 Feb 4, 2014
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you can always remember that

(wavelength)*(frequency) = (speed of wave propagation)

This is valid for all waves.

Radio waves have a propagation speed of the speed of light i.e. c which is about 3x10 8 m/s

so for radio waves

wavelength = c/frequency = 3x10 8/frequency meters

you can plug in the numbers
 Feb 4, 2014

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