What type of spectrum illustrates distinct frequencies for all light waves from a source?

A line spectrum is characterized by distinct frequencies corresponding to specific wavelengths of light. This occurs when electrons in an atom transition between energy levels, emitting or absorbing photons at particular energies. Each transition results in a sharp line at a specific wavelength, hence the term "line spectrum." The pattern of these lines is unique to each element or compound, allowing for the identification of the substance based on its spectral signature.

In contrast, a continuous spectrum consists of all wavelengths of visible light blended seamlessly without discrete lines. An emission spectrum, while related, shows lines of emitted light rather than distinguishing all frequencies. An absorption spectrum appears when light passes through a medium, absorbing certain wavelengths and leaving dark lines on a continuous spectrum. Each type of spectrum provides different information about the source of light and its composition, highlighting the distinctiveness of the line spectrum.