Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Rate Laws Order · Exam: NET JUNE 2014 · Marks: 2 · Difficulty: Medium
The fluorescence lifetime of a molecule in a solution is $5 \times 10^{-9} \mathrm{s}$. The sum of all the noradiative rate constants ( $\Sigma \mathrm{k}_{\mathrm{nr}}$ ) for the decay of excited state is $1.2 \times 10^{8} \mathrm{s}^{-1}$. The fluorescence quantum yield of the molecule is
(a)0.1
(b)0.2
(c)0.4
(d)0.6
Answer
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