Can someone explain what elements are present given this type of spectra? (Spectrometer picture has been included)

  • #1
Luminescent
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Homework Statement:
What elements account for these absorption lines seen?..
Relevant Equations:
N/A
1F2E15A1-4412-4EB0-9C40-EAA2E5E95F39.jpeg
 
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Answers and Replies

  • #2
mjc123
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I can't see any absorption lines at all. If you're thinking about the two big black vertical lines, they are not absorption lines, which would be horizontal (at a particular wavelength) in this picture, not cutting across the spectrum. They are probably something to do with the optics of the spectrometer.
 
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  • #3
Luminescent
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I can't see any absorption lines at all. If you're thinking about the two big black vertical lines, they are not absorption lines, which would be horizontal (at a particular wavelength) in this picture, not cutting across the spectrum. They are probably something to do with the optics of the spectrometer.
The first image is a continuous spectrum . The second image you believe is a continuous spectrum as well ? ...Where am I going wrong, the first image is pointed at candle flame the second is pointed at an arc flash ... wouldn’t there be absorption lines present in the second image ? What accounts for the thick darker regions? :/
11F3CE9D-3824-482E-8A9F-738821CDD035.jpeg
CAADA9F0-687B-4925-83E6-C8B0320DDA0B.jpeg
 
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  • #4
mjc123
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Please don't change your original post (except for minor corrections like typos); now my post seems to make no sense.

What thick darker regions? They both look like continuous spectra. Absorption lines would appear as narrow dark vertical lines. Possibly you haven't got a sharp image of your object, so the spectrum is blurred.
 
  • #5
Luminescent
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Please don't change your original post (except for minor corrections like typos); now my post seems to make no sense.

What thick darker regions? They both look like continuous spectra. Absorption lines would appear as narrow dark vertical lines. Possibly you haven't got a sharp image of your object, so the spectrum is blurred.
Please don't change your original post (except for minor corrections like typos); now my post seems to make no sense.

What thick darker regions? They both look like continuous spectra. Absorption lines would appear as narrow dark vertical lines. Possibly you haven't got a sharp image of your object, so the spectrum is blurred.

Okay noted sorry about that ! I think you’re right I need a better image . Thanks for the help !
 

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