What kind of spectra are those in Group A? What kind are Group B?, astronomy

Jul 20th, 2016
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Question description

you will need to reference the following Spectral Analysis document. Click the link to access the document.

Using the Spectral Analysis document as a reference, answer the following questions.

      1. What kind of spectra are those in Group A? What kind are Group B?
      2. Explain what physical phenomenon might produce spectra like Group A, and what different phenomenon would produce spectra like Group B.
      3. There is a third type of spectrum. Name it, and explain what causes that kind.
      4. Notice that the solar spectrum in Group B has a line labeled "1," a set of lines labeled "2," and a line labeled "3." Referring back to Group A, identify the element that corresponds to each of these sets of lines (a different element for each set).
      5. Using the sun as a reference point for the "normal" positions for spectral lines, identify whether each of the other spectra in Group B is red-shifted or blue-shifted.

Tutor Answer

(Top Tutor) Daniel C.
School: UIUC

Hi, there goes the answer...in case of any clarification reach out to me


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What kind of spectra are those in Group A? What kind are Group B?

1. Group A consists of an Emission Line Spectrum. Emission spectra are produced by thin
gases in which the atoms do not experience many collisions (because of the low density). The
emission lines correspond to photons of discrete energies that are emitted when excited atomic
states in the gas make transitions back to lower-lying levels.

Group B consists of an Absorption line Spectrum. This is in some ways the converse of an

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