Fluorescence occurs within ...................
10−510^{-5}10−5 ms
10-5 µs.
10−510^{-5}10−5 ns
10−510^{-5}10−5 s
(D) 10−510^{-5}10−5 s
Explanation:
Fluorescence is a rapid emission process, commonly characterized by lifetimes shorter than about 10^-5 s.