A photon of visible light has a wavelength of . Calculate its
(i) wavenumber
(ii) frequency
(iii) energy per mol
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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.
Spin-Spin splitting
Calculate the ESR frequency of an unpaired electron in a magnetic field of 3000 G (0.3 T).
[Given: ;
; and
]
What are different mechanisms that contribute to the relaxation of nuclear spins in the excited state? Explain any one of them.
The molecule has 3 fundamental vibrational frequencies. One is Raman active and two are IR active. Identify the structure of the molecule.
Isomer shift
What is meant by the Balmer series of hydrogen? What will be the wave number of the longest wavelength in the Balmer series?