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Home Q & A Board Science-Related Homework Help Physics Astronomy
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killian killian
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9 years ago
Suppose you want to know the chemical composition of a distant star. Which piece of information is most useful to you?
A) The wavelengths of spectral lines in the star's spectrum
B) The peak energy of the star's thermal radiation
C) The Doppler shift of the star's spectrum
D) Whether the star's spectrum has more emission lines or more absorption lines
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padrepadre
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9 years ago
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killian Author
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9 years ago
Thanks sir, this is for my astronomy class
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