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18.5 Chemistry
Vocabulary Words
Question | Answer |
---|---|
luminous | objects that give off their own light |
incandescent | the light produced when an object gets hot enough to glow |
fluorescence | a process in which phosphorescent material converts radiation into visible light |
phosphor | a solid material that can emit light by fluorescence |
laser | a device that generates a beam of coherent light |
coherent light | light in which waves have the same wavelength, and the crests and troughs are lined up |