The spectrum was first utilized in optics to explain the rainbow of colours in seen gentle after passing via a prism.
Because the scientific understanding of sunshine progressed, the idea grew to become relevant to the complete electromagnetic spectrum.
The electromagnetic spectrum refers back to the full vary of all frequencies of electromagnetic radiation, in addition to the attribute distribution of electromagnetic radiation emitted or absorbed by a selected object.
Units used to measure an electromagnetic spectrum are referred to as spectrographs or spectrometers. The seen spectrum is the portion of the electromagnetic spectrum seen to the human eye.
The wavelength of seen gentle is between 390 and 700 nanometers (nm).
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