MCAT Question of the Day
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    Q:

    		 Two experiments provide an emission and absorption spectrum for hydrogen. The emission spectrum is found by analyzing the light from hydrogen gas that is heated to high temperatures, while the absorption spectrum is found by passing incandescent light through hydrogen gas. Which of the best describes the absorption spectrum if it is obtained at room temperature?
    		 

    A

    		 The absorption spectrum contains all the same lines as the emission spectrum

    B

    		 The absorption spectrum is missing some of the lines that the emission spectrum has

    C

    		 The absorption spectrum matches the emission spectrum, and even has some extra lines

    D

    		 The absorption spectrum contains all the same lines as the emission spectrum, but they are phase-shifted



    Atomic & Electronic Structure |
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