Multiple Choice
Interstellar space (the space between the stars) is filled with extremely low-density hydrogen gas. In the vicinity of a hot star, this gas can be heated to a very high temperature. This hot, low-density gas will
A) emit light at specific wavelengths characteristic of hydrogen, among other elements.
B) emit light at all wavelengths in a blackbody spectrum, with emission lines characteristic of hydrogen superimposed on the spectrum.
C) emit light at all wavelengths in a blackbody spectrum characteristic of a hot gas.
D) reflect light at specific wavelengths characteristic of hydrogen.
Correct Answer:

Verified
Correct Answer:
Verified
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