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At pH 7.0, fluorescin displays a double exponential fluorescence intensity decay at 530 nm. The time...

At pH 7.0, fluorescin displays a double exponential fluorescence intensity decay at 530 nm. The time dependent intensity decay can be expressed as I(t) = 0.19exp(-t/0.62ns) + 0.87exp(-t/3.33ns). What is the fractional contribution of the 0.62ns component to the total steady-state intensity measured at 530 nm? Please show working and explain

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