× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
y
2
s
2
a
1
w
1
w
1
i
1
m
1
s
1
c
1
k
1
1
m
1
New Topic  
potato55 potato55
wrote...
Posts: 675
Rep: 0 0
6 years ago
The spectra of most stars are dark-line spectra because ________.
 
  A) elements in the Sun's outer atmosphere absorb in these dark-line bands, blocking the radiation in those bands
  B) electrons decaying to a lower energy state emit a photon at a fixed energy, leaving dark bands between the emissions
  C) elements in the Sun's outer atmosphere emit radiation between these dark bands
  D) elements in the earth's atmosphere absorb in these dark-line bands, blocking out the frequencies in the dark bands
Read 97 times
1 Reply
Replies
Answer verified by a subject expert
skalassskalass
wrote...
Top Poster
Posts: 612
Rep: 8 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

potato55 Author
wrote...

6 years ago
Helped a lot
wrote...

Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1179 People Browsing
 189 Signed Up Today
Related Images
  
 106
  
 243
  
 890
Your Opinion