An astronomer finds a source of light in space that emits light only in specific,narrow emission lines.Kirchhoff's laws lead the astronomer to which conclusion?
A) The source cannot consist of gases but rather must be a solid object.
B) The source is made up of a hot, dense gas.
C) The source is made up of a hot, low-density gas.
D) The source is made up of a hot, dense gas surrounded by a rarefied gas.

Question

Quizplus · Accepted Answer

According to Kirchhoff's laws, a hot, low-density gas emits light at specific wavelengths, producing an emission line spectrum.

An Astronomer Finds a Source of Light in Space That