Ph.D. Course Work Examination Jan/Feb-2018
PHYSICS (Paper III)
Modern Topics in Physics
Day Date: Thursday, 18-01-2018
Max. Marks: 100
Time: 11.00 AM to 02.00 PM
Instructions: All questions are compulsory.
Q.1

What are ferroelectrics? Distinguish between spontaneous and induced polarization? Explain ferroelectric phase transition in Barium Titanate.
10

Write a short note on any two:
10
Types of fuel cells
Bismuth based compounds
Dye sensitized solar cells
Q.2

What is photovoltaic effect? Discuss solar cell characteristics.
10

Write a short note on any two:
10
Etching process
Polyaniline based supercapacitors
Magneto electro coupling effect
Q.3

Discuss solid oxide fuel cells.
10

Write a short note on any two:
10
Rare earth magnites
FET devices for gas sensing
RuO2 based supercapacitors
Q.4

Compare battery and supercapacitors.
10

Write a short note on any two:
10
Thin film deposition methods
Preparation of DMS
Proton exchange membranes
Q.5

Discuss paramagnetic and ferromagnetic DMS.
10

Write a short note on any two:
10
Nanostructural solar cells
Silicon solar cells
Applications of supercapacitors