9781334254345 - Some Investigations in the Infra-Red Region of the Spectrum: 1. On the Infra-Red Emission Spectrum of the Mercury Arc (in Collaboration With Prof. J. ... of Mercury... (3 resultados)

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condición: New. Print on Demand. This book explores the infra-red emission spectrum of mercury vapor. The author examines the frequencies associated with mercury atoms in neutral and excited states and discusses how these frequencies characterize the atomic structure of the element. The book opens with an overview of the existing literature on absorption by mercury vapor and previous investigations into the emission spectrum of the mercury arc in the infra-red region. The author notes discrepancies and gaps in existing research and identifies the need for further investigation of lines observed by Coblentz and Geer in the neighborhood of 311μμ. This book seeks to fill those gaps and provide more accurate measurements and analysis of the lines in the emission spectra. The text presents the results of the author's own extensive research using a rock salt prism spectrometer and a Rubens thermopile. The author identifies thirteen lines in the infra-red spectrum of the mercury arc between the wavelengths 1 and 3.02µm and confirms the existence of a line near 1.04µm and one with a wavelength longer than 1µm. The author also reports the discovery of three new lines at wavelengths of 1.067µm, 1.090µm, and 1.270µm. The author concludes by observing that the distribution of intensity in the lines of the spectrum follows an energy curve and that an increase in temperature causes a relatively greater increase in the intensities of the shorter wavelength lines than in the longer wavelength lines. The author also notes that the discovery of these new lines suggests the possible existence of a new triplet in the infra-red spectrum of mercury vapor. The book contributes to our understanding of the atomic structure of mercury and provides valuable insights for further research in the field of atomic spectroscopy. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.