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As you approach a steady light source, the wavelength of the emitted light appears shorter.

In physics, the wavelength is the spatial duration of a periodic wave—the distance over which the wave's form repeats.

Wavelength is the space between identical points (adjoining crests) in the adjoining cycles of a waveform signal propagated in space or alongside a twine. In wireless structures, this period is usually specified in meters (m), centimeters (cm), or millimeters (mm).

Meter is the SI unit of wavelength. It is denoted as m. whilst measuring wavelength the multiples or fractions of a meter are likewise used. substantially, exponential powers of 10 are used whilst wavelengths are of large assets.

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