what is an spectrune
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Spectrum is a band of colours, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength. A spectrum is also a condition that is not limited to a specific set of values but can vary infinitely within a continuum.
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The band of seven colours is know as visible spectrum.
These colours are violet, indigo, blue, yellow, orange and red.
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