A) atoms
B) molecules
C) amorphous solids
D) crystalline solids
Correct Answer: B
Solution :
Band spectrum is defined as a molecular spectrum consisting of numerous closely spaced, often unresolved emission lines or absorption lines which occur across a limited range of frequencies. Each line represents an increment of energy due to a change in the rotational state of the molecule. Bands caused by titanium oxide, zirconium and carbon compounds are characteristic of low temperature stars.
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