Date of Award
5-1938
Degree Type
Bachelors Essay
Degree Name
Bachelor of Science (BS)
Department
Physics
First Advisor
Arpad E. Elo
Second Advisor
D.J. Keegan
Abstract
Spectra are generally classified as emission or absorption spectra. Whenever a source is radiating, it is producing an emission spectrum. If the source is solid, such as the filament of f lamp, the spectrum is generally continuous, that is there is no interruption on the contlnum of wavelengths. When the source of radiation is a gas at normal or low pressures, it consists of bright isolated lines on an otherwise dark background, that is, it is discontinuous. Such spectra may be observed in flames, when metallic salts are introduced; in spaces between the electrodes of electric arcs; in spark discharges; and In discharge tubes.
Recommended Citation
Toy, Elizabeth Moy, "The Photography and Identification of the Secondary Spectrum of Helium" (1938). Bachelors’ Theses. 957.
https://epublications.marquette.edu/bachelor_essays/957
Comments
A thesis submitted to the faculty of the College of Liberal Arts of Marquette University in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science, Milwaukee, Wisconsin