Why must the radiation source for fluorescence spectrometry be more powerf

Question - Why must the radiation source for fluorescence spectrometry be more powerful than for absorption spectroscopy?

Options:

A . Because the magnitude of the output signal is proportional to the power of the incident radiation

B . Because the sample won't fluoresce if the incident radiation is of low power

C . To allow for scattering by the sample

D . None of the above

Answer: Option A

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