Answer
The feature that distinguishes fluorescence from phosphorescence is the magnitude of the time interval between photon absorption and reemission events. Fluorescence is for delay times less than a second. Whereas, phosphorescence occurs for longer times.
Work Step by Step
The feature that distinguishes fluorescence from phosphorescence is the magnitude of the time interval between photon absorption and reemission events. Fluorescence is for delay times less than a second. Whereas, phosphorescence occurs for longer times.