Explain why the atomic spectra are line spectra whereas the molecular spectra are band spectra.
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The rotational Raman spectrum of a diatomic molecule has the first line of a series of Stokes and anti-Stokes lines at , relative of the
of incident light. What would be its bond length.
The frequencies of the first and second overtones respectively are exactly double and triple of the fundamental vibration frequency. Comment.
The lifetime of (excited state) is
. If the excited state is
above the ground state determine the linewidth
and ratio
.
Electronic transitions are called vertical transitions. Comment.
Explain why the atomic spectra are line spectra whereas the molecular spectra are band spectra.
has bond length
. Calculate the wavenumbers of the first four lines in its microwave spectrum.
[Given: mass of C=12.000 u and mass of N=14.007 u]
What is meant by the Balmer series of hydrogen? What will be the wave number of the longest wavelength in the Balmer series?