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5 December, 08:12

Telephone signals are often transmitted over long distances by microwaves. what is the frequency of microwave radiation with a wavelength of 3.5 cm?

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  1. 5 December, 08:39
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    Microwaves move at the speed of light which is equal to 3 x 10^8 m/s. The frequency of a wave is calculated by dividing its speed by the wavelength. Through that approach,

    f = (3x10^8 m/s) (100 cm/1m) / 3.5 cm

    = 8571428571/s = 8 571 MHz
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