GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What spectrum is one that is a series of bright lines of particular wavelengths produced by a hot gas under low pressure?
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Absorption
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Emission
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Continuous
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None of the above
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Explanation:
Detailed explanation-1: -A hot, dense object produces a continuous spectrum(blackbody spectrum). A hot, low-density gas produces an emission-line spectrum. A cool, dense gas produces an absorption-line spectrum.
Detailed explanation-2: -Answer and Explanation: A spectrum containing only specific wavelengths is called a line spectrum. A line spectrum is a type of spectrum that can be defined as the exhibition of colors formed from light in lines. The visible colors are a series of lines in the line spectrum.
Detailed explanation-3: -When the sodium atom electrons then fall back down to their previous energy level, they emit the difference in energy as light at the D line frequency, creating the bright emission lines.
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