Master of Science I (Physics Materials Science) Examination:
Oct/Nov 2016 Semester II (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SH
544
Thursday
24/11/2016
10:30 AM
to
01:00 PM
Analytical Techniques
C
VIII
Instructions: Q.No.1 and 2 are compulsory.
Answer any three questions from Q.No.3 to Q.No.7.
Attempt any five questions.
Use of non programmable calculator is allowed
Total Marks: 70
Q.1 Select correct alternatives: 08
The maximum useful magnification of a compound microscope is
approximately times the numerical aperture of the objective being
used.
100 1000
10 10000
UV-V is spectroscopy of organic compounds is usually concerned with
which electronic transition
The main advantages of fluorescence over UV-V is spectroscopy is
Its sensitivity
Its compatibility with separation techniques
Its compatibility with most analytes
None of these
Why do fluorescence spectrometers often use double-beam optics?
So a reference solution can be used
To compensate for beam attenuation by the monochromator
To compensate for power fluctuations in the radiation source
All of the above
The resolution of electron microscope is
0.1 nm 0.2nm
10nm 20nm
The kind of electron microscope which is used to study internal structure of
material is
Scanning electron microscope
Transmission electron microscope
Light microscope
Compound microscope
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What is the exact mass of the molecular ion of a compound with molecular
formula C3H8O?
60.0000 60.0573
60.0624 59.9949
How is the wavelength controlled in an FTIR spectrometer?
By a Michelson interferometer
By a computer
By a laser
By calibration with a standard sample
State True or false: 06
The first diffraction method used was Laue method.
Infrared spectroscopy provides valuable information about functional
groups.
The 100-400 nm wavelength range is associated with UV spectroscopy.
The Aspirin compounds do not absorb light in the UV/visible spectrum?
The path of ions after deflection depends on the mass of the ion.
Absorbance of a quantum of energy excites a molecular vibration.
Q.2 Attempt the following: 14
Write the working X-ray diffraction technique. 05
Explain the Attenuated Total Reflection technique. 04
Draw and explain depth-profiling using X-ray photoelectron spectroscopy
(XPS).
05

Q.3 Explain powder X-ray diffraction method and explain how intensity of
reflection is calculated.
10
How to determine the lattice parameters for a hexagonal crystal system? 04
Q.4 How to calculate absorption maximum of dienes and dienons using ultraviolet
and visible spectrophotometry?
10
Give the advantages of ultraviolet and visible spectrophotometry over the
infra-red spectroscopy.
04
Q.5 Give the principle of absorption of common functional groups in infra-red
spectroscopy.
10
Give the applications of ultraviolet and visible spectrophotometries. 04
Q.6 Discuss the working principle of Fourier-Transform Infra Red spectroscopy
(FTIR) spectroscopy.
10
Give the advantages of Raman spectroscopy over Fourier- Transform Infra Red
Spectroscopy.
04
Q.7 Define and discuss the term Miller indices. 07
Write note on Raman spectrometer. 07
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