Multiple Choice
According to Kirchhoff's laws, the continuous spectrum of light from a hot star, after passing through a cool gas cloud,
A) is enhanced at infrared wavelengths by a continuous spectrum emitted by the cool gas.
B) contains additional emission lines from energy emitted by the atoms of the cool gas.
C) shows absorption features where light has been absorbed by the atoms of the cool gas.
D) is unaffected because atoms in the gas cloud are too cool to absorb or emit energy.
Correct Answer:

Verified
Correct Answer:
Verified
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