DISTANCE EDUCATION
M.Sc. (Physics) DEGREE EXAMINATION, MAY 2018.
SPECTROSCOPY
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
x 20 100)
1. Discuss the Heitler London theory for hydrogen
molecule.
Explain the sp and sp2 hybridizations.
2. What are rigid and non-rigid rotators? Give
examples.
Explain quadrupole hyperfine interaction.
Discuss the features of pure rotational Raman
spectra.
3. Define Stark effect and enumerate its importance in
microwave spectroscopy.
Discuss the molecular structure analysis through IR
spectroscopy.
4. Discuss the vibrational spectra of diatomic
molecules.
Explain rotational course spectra.
5. Explain in detail Franck-Condon principle.
Describe the disassociation and predisassociation
processes.
Sub. Code
21
DE-4062
2
wk11
6. Explain hyper Raman effect.
Give an account of coherent and Stoke's Raman
Scattering.
Discuss the theory of multiphoton absorption.
7. Define resonance and then nuclear resonance.
Explain dipole-dipole interaction.
Discuss the principles of ESR spectroscopy.
8. Give the theory for chemical shift.
Explain the experimental study of Mossbauer effect.