Conceptual questions. The shape of the vertical lines seen in an atomic emission

Question

Conceptual questions.

The shape of the vertical lines seen in an atomic emission spectrum results from (a) the light being vertically polarized, (b) the energy levels in an atom being parallel to each other, (c) the shape of the slit, (d) the shape of a photon. If you compare the red light from a glowing tube of neon gas with the red light in the beam of a helium-neon laser, you would find the greater number of spectral lines in light from the (a) neon gas tube, (b) laser beam, (c) both have the same number of spectral lines.

Explanation / Answer

-The shape of the vertical lines seen in an atomic emission spectrum results from..

b) The energy levels in an atom being parallel to each other

-if you compare the red light from a glowing tube of neon gas with the red light in the beam of a helium-neon laser,you would find the greater number of spectral linesin light from the..

C) both have the same number of spectral lines

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