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Colors in a spectrum represent different frequencies of light. Light is formed when a particular atom or molecule is stimulated by some energy input - the energy forces an electron to jump to a higher level of excitation. When the electron falls back to its normal state it releases that energy as a photon of light, one that has a particular frequency determined by the atom or molecule and the amount of energy that the electron absorbed. So, when looking at a line spectrum (of, say, the light from a distant star) the color lines show the particular wavelengths of light that the star is giving off, which tell scientists a lot about what elements and compounds are in the star.

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14y ago
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13y ago

The different colours in a line spectrum represent different frequencies of light. The lighter the colour will represent light being BOUNCED off a surface and a darker colour will represent light being absorbed.

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13y ago

Each line in the emission spectrum indicates a different frequency of light

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Q: What do the colors in a line spectrum represent?
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