P11G.1 The fluorescence spectrum of anthracene vapour shows a series of peaks of increasing intensity with individual maxima at 440 nm, 410nm, 390 nm, and 370 nm followed by a sharp cut-off at shorter wavelengths. The absorption spectrum rises sharply from zero to a maximum at 360 nm with a trail of peaks of lessening intensity at 345 nm, 330 nm, and 305 nm. Account for these observations.
P11G.1 The fluorescence spectrum of anthracene vapour shows a series of peaks of increasing intensity with individual maxima at 440 nm, 410nm, 390 nm, and 370 nm followed by a sharp cut-off at shorter wavelengths. The absorption spectrum rises sharply from zero to a maximum at 360 nm with a trail of peaks of lessening intensity at 345 nm, 330 nm, and 305 nm. Account for these observations.
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Transcribed Image Text:P11G.1 The fluorescence spectrum of anthracene vapour shows a series of
peaks of increasing intensity with individual maxima at 440 nm, 410 nm,
390 nm, and 370 nm followed by a sharp cut-off at shorter wavelengths. The
absorption spectrum rises sharply from zero to a maximum at 360 nm with a
trail of peaks of lessening intensity at 345 nm, 330 nm, and 305 nm. Account
for these observations.
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