An Astronomer Finds a Source of Light in Space That

question 330

Multiple Choice

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.

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