a particular transmitter of Aakashvani broadcasts at 420.5m wavelength.given the speed of radio waves 3*10/8ms-1.calculate the frequency at which the radio station brodcadts its programme.
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For the given radio-wave,
velocity, v = 3 * 10⁸ m/s
wavelength, λ = 420.5 m
frequency, f = (?)
We know that,
v = λf
∴ 3 * 10⁸ = 420.5 * f
∴(3 * 10⁸) /420.5 = f
∴f = 7.13 * 10⁵ Hz (approx.)
∴ f = 7.13 * 10² kHz
velocity, v = 3 * 10⁸ m/s
wavelength, λ = 420.5 m
frequency, f = (?)
We know that,
v = λf
∴ 3 * 10⁸ = 420.5 * f
∴(3 * 10⁸) /420.5 = f
∴f = 7.13 * 10⁵ Hz (approx.)
∴ f = 7.13 * 10² kHz
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