A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Definition: The characteristic wavelengths of electromagnetic radiation (or a portion thereof) that is emitted or absorbed by an object or substance, atom, or molecule.
By Anne Marie Helmenstine, Ph.D., About.com
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Definition: The characteristic wavelengths of electromagnetic radiation (or a portion thereof) that is emitted or absorbed by an object or substance, atom, or molecule.
©2009 About.com, a part of The New York Times Company.
All rights reserved.