A band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.
Gray
bacause the spectrum means spectrum so the spectrum is known as spectrum is called as spectrum
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"What dose resected mean?" "What dose resected mean?"
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mean dose x mass = integral dose
I suppose you mean the visible spectrum, only a small part of the entire electromagnetic spectrum. The visible spectrum is basically all of the colors the human eye can detect.
Assuming that you mean light in the visible spectrum, it would mean that the thing is giving of radiation that is in the visible light spectrum
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It mean after