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The wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats, and the inverse of the spatial frequency or wavenumber. Determined by considering the distance between consecutive corresponding points of the same phase, such as crests. Use for wavenumber, wavelength, frequency.
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Why is Near Field Communication (NFC) range limited to about 20cm?
Corresponding wavelength is 22.11 meters long, but we want also to emit our EM waves into the environment. …