A distribution of light consisting of dark lines on a continuous background is referred to as

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Multiple Choice

A distribution of light consisting of dark lines on a continuous background is referred to as

Explanation:
Dark lines in a continuous spectrum arise when light from a hot, continuous source passes through a cooler gas. Atoms in that gas absorb photons at specific wavelengths corresponding to transitions between energy levels, removing those colors from the beam. The resulting spectrum shows dark absorption lines at characteristic wavelengths, which is called an absorption line spectrum. This differs from an emission spectrum, which shows bright lines on a dark background, and from a continuous spectrum, which has no lines.

Dark lines in a continuous spectrum arise when light from a hot, continuous source passes through a cooler gas. Atoms in that gas absorb photons at specific wavelengths corresponding to transitions between energy levels, removing those colors from the beam. The resulting spectrum shows dark absorption lines at characteristic wavelengths, which is called an absorption line spectrum. This differs from an emission spectrum, which shows bright lines on a dark background, and from a continuous spectrum, which has no lines.

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