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Physics 21 Online
OpenStudy (anonymous):

If a gas below its temperature of incandescence does not emit radiation, how is an absorption spectrum produced? a gas below its temperature of incandescence takes on characteristics of a solid and then emits radiation a subincandescent gas absorbs specific wavelengths from the radiation emitted by some other incandescent source a gas's infrastructure rearranges to permit the emitting of radiation none of the above

OpenStudy (anonymous):

second one

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