DISTANCE EDUCATION
M.Sc. (Physics) DEGREE EXAMINATION, MAY 2016.
MATERIALS SCIENCE
(2008 Onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions
Each question carries 20 marks.
20 100)
1. What are the various methods of corrosion. How it
is controlled?
What is fatigue? Explain.
What is a polymer? Describe their main
characteristics and state their uses.
2. Define creep. Explain its phases and mechanism.
Explain the addition and condensation
polymerization.
Write a note on chemical laser.
3. Outline the principle and properties of laser.
Describe the construction and working of Nd-YAG
laser.
Write a note on town's condition.
Sub. Code
25
DE-3840
2
sp4
4. What is population inversion and how can it be
achieved?
With the necessary diagram, explain the
construction and working of Co2 laser.
Explain Faraday's effect with example.
5. Explain the production and measurement of high
vaccum.
Describe the principle and working of pirani and
penning gauges.
What is pockel's effect.
6. Explain kerr effect in detail.
Discuss in detail the various sputtering methods
and mention their advantages.
7. Explain briefly about thermal evaporation.
Discuss the theory of LB films and its applications.

Describe the electro chromic display systems.
8. Explain briefly about fuel cells.
Also describe the operation.
What are silver ion conductors explain its
applications?