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If the absorption of electromagnetic radiation by matter results in the emission of radiation of the same or longer wavelengths for a long time, the phenomenon is termed as which of the following?(a) Luminescence(b) Fluorescence(c) Phosphorescence(d) Spontaneous emissionThis question was addressed to me in homework.My question comes from X-Ray Fluorescence Spectrometry topic in division X-Ray Spectrometers of Analytical Instrumentation

Answer»

The correct option is (C) Phosphorescence

The explanation: If the absorption of electromagnetic RADIATION by matter results in the emission of radiation of the same or longer WAVELENGTHS for a long time, the PHENOMENON is termed as phosphorescence. Phosphorescence is a type of luminescence.



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