M.Phil. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Physics
ADVANCED INSTRUMENTATION TECHNIQUES
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Part A x 5 25)
Answer any five questions.
1. Explain the Coherent scattering of X-rays.
2. Describe the principle of ESR. Compare it with NMR.
3. What are the advantages and disadvantages of
transmission electron microscopy in comparison to
scanning electron microscopy?
4. How electrical conductivity is measured using two probes
method? Explain.
5. Explain the difference between DTA and DSC.
6. Discuss the principle of flame photometry.
7. Derive an equation of state of real gases.
8. Explain the working principle of Pirani gauges.
Sub. Code
7PPH1C2
AFS-0199
2
WS6
Part B 10 50)
Answer all questions by choosing either or
9. List the characteristic properties of Raman
lines.
Draw and explain the constructional details of
Raman spectrometer.
Or
Define chemical shift. Explain its significance
in NMR spectroscopy.
Enumerate the construction and working
principle of FTIR spectroscopy.
10. What is a SEM? How does a SEM work?
Discuss the operation of scanning tunneling
microscopy.
Or
Explain the principle, construction and operation of
atomic force microscopy.
11. Discuss the instrumentation of TGA and explain
each portions of the thermograms of any one organic
compounds.
Or
Explain the principle of differential scanning
calorimetry.
Explain the various parts of differential
thermal analysis.
AFS-0199
3
WS6
12. Enumerate the working principle and applications
of AAS with suitable diagram.
Or
With a neat block diagram, explain the construction
and working principle of EDAX analyzer.
13. Describe the principle, construction and operation of
turbo molecular pumps and their salient features.
Or
Write short note on mean free path.
Explain the various regions of gas flow in
pipes.
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