Question

What is a 'spectrum”?​

Answer 1

• A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.

Answer 2

Answer:

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