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TeachMeFinance.com - explain spectrum spectrum The term 'spectrum' as it applies to the area of Earth observation can be defined as ' 1. The series of colored bands diffracted and arranged in the order of their respective wave lengths by the passage of white light through a prism or other diffracting medium and shading continuously from red (produced by the longest visible wave) to violet (produced by the shortest visible wave). 2. Any of various arrangements of colored bands or lines, together with invisible components at both ends of the spectrum, similarly formed by light from incandescent gases or other sources of radiant energy, which can be studied by a spectrograph. 3. In radio, the range of wave lengths of radio waves, from 3 centimeters to 30,000 '. The term 'spectrum' as it applies to the area of telecommunications can be defined as 'The range of electromagnetic radio frequencies used in the transmission of sound, data and television'. Previous 5 Terms: spectrophotometer spectrophotometer spectrophotometer spectroscope spectroscopy Next 5 Terms: Spectrum Spectrum intensity Spectrum Width Spectrum Width Cross Section Specular reflectors About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.