Explain a certain molecule fluoresces at a wavelength

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A certain molecule fluoresces at a wavelength of 400 nm with a half-life of 1.0 ns. It phosphoresces at 500 nm. If the ratio of the transition probabilities for stimulated emission for the S* --> S to the T --> S transitions is 1.0 x 10^5, what is the half-life of the phosphorescent state?

Reference no: EM13490031

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