The figures below show the spectrum of a star,along with five other spectra labeled A through E. Which one of the labeled spectra shows what the spectrum of that star would look like if it were viewed through a significant amount of interstellar dust?
A)A
B)B
C)C
D)D

Question

The figures below show the spectrum of a star,along with five other spectra labeled A through E.  Which one of the labeled spectra shows what the spectrum of that star would look like if it were viewed through a significant amount of interstellar dust?
A)A 
B)B 
C)C 
D)D

Quizplus · Accepted Answer

Spectrum D shows a decrease in intensity in the blue end of the spectrum, which is indicative of interstellar dust absorption. The other spectra do not show this feature.

The Figures Below Show the Spectrum of a Star,along with Five