Master of Science I (Physics Materials Science)
Examination: Oct/Nov 2016 Semester II (Old CGPA)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR SH
548
Thursday
24/11/2016
10:30 A.M
to
01:00 P.M
Analytical Techniques
C
VIII
Instructions: Q.No.1 and 2 are compulsory.
Answer any three questions from Q.No.3 to Q.No.7.
All questions carry equal marks.
Use of non programmable calculator is allowed.
Total Marks: 70
Q.1 Select correct alternatives: 08
The condition of tetragonal crystal system are
a b α β γ 90° a b α β γ 90°
a b α β γ 90° a b α β γ 90°
The conditions of orthorhombic crystal system are
a b α β γ 90° a b α β γ 90°
a b α β γ 90° a b α β γ 90°
The absorption in the molecule shift towards higher intensity region is known
as
Bathochromic shift Hypochromic shift
Hyperchromic shift Hysochromic shift
The maximum amount of energy is required for transition.
σ n σ
n
The wavelength region UV radiation is
200-400 nm 400-800 nm
200-800 nm 200-600 nm
X-ray photoelectron spectroscopy is used for analysis.
Chemical shift Oxidation state analysis
Both a and b Optical analysis
The no. of vibration modes for a linear molecule is
3n 5 3n 6
4 30
are of longer wavelength than that of the wavelength of exciting
radiation.
Stoke lines Anti-stokes lines
Raman lines All of these
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State True or false: 06
The energy of the scattered radiation is more than the incident radiation for
the anti-stokes line.
Anti-stokes lines are of equal wavelength than that of the wavelength of
exciting radiation.
The no. of vibrational modes for CO molecule are 30.
The bonds having symmetric stretching are Raman active.
The UV-VIS spectroscopy is used for determination of extent of conjugation
present in the molecule.
Lamberts law is not used in the determination of concentration of solution.
Q.2 Write short notes:
The X-ray powder diffraction method. 05
Beer-Lamberts law 05
Stokes and anti stoke lines 04

Q.3 Describe in detail the instruementation of X-ray diffractometer. 10
Write a note on determination of particle size using X-ray. 04
Q.4 Give basic principle and instrumentation of FTIR spectroscopy. 10
Give the selection rule for infrared spectroscopy. 04
Q.5 Describe the basic principle and instrumentation of X-ray photoelectron
spectroscopy.
10
Write a note on chemical shift in XPS. 04
Q.6 Discuss the different factors affecting the absorption frequency in IR
spectroscopy.
10
Give the applications UV-VIS spectroscopy. 04
Q.7 Discuss the basic principle of UV-VIS spectroscopy and explain the
instrumentation.
10
Give qualitative and quantitative applications of infra-red spectroscopy. 04
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