CHEM 03

University of Lucknow

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“FLUORESCENCE AND PHOSPHORESCENCE”
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41

januari 2025

2024/2025

A+
Fluorescence and phosphorescence are two types of luminescence, where materials emit light after absorbing energy. Both phenomena are a result of electron transitions within atoms or molecules, but they differ in their mechanisms and duration of light emission. Fluorescence occurs when a substance absorbs light or electromagnetic radiation and quickly re-emits it. The emission typically happens almost instantaneously, within nanoseconds, and the light emitted has a longer wavelength (lo...
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