A Sample of Hydrogen Gas Is Heated and Produces a Spectrum

question 90

Multiple Choice

A sample of hydrogen gas is heated and produces a spectrum of bright lines.A blackbody spectrum is observed through a cooler sample of hydrogen gas.This situation also produces a line spectrum,and the locations of these lines:

• A) are in exactly the same places occupied by the lines in the first bright line spectrum. In fact, these two bright line spectra are identical in every way.
• B) are in exactly the same places occupied by the lines in the bright line spectra. These lines, however, are dark absorption lines.
• C) are in different places from the lines in the bright line spectrum.
• D) match the lines in the bright line spectrum. However, there are many additional lines in this dark line spectrum.

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