M.Phil. DEGREE EXAMINATION, APRIL 2016
Nanoscience and Technology
NANOMATERIALS FOR POWER SOURCES, MAGNETIC
DEVICES AND THEIR TOXICITY
(CBCS 2011 onwards)
Time 3 Hours Maximum 75 Marks
Answer all questions.
× 15 75)
1. Explain in detail about
III-V
II-VI solar cells.
Or
Discuss in detail about
Nanosolar cells
Photocatalytic and photobiological generation
of hydrogen fuel.
2. Discuss in detail about Lithium, Ni-Cd and Metal
hydride battery.
Or
Explain in detail about fabrication and the
advantage of various types of supercapacitors.
3. Explain in detail how Methanol and Microbial fuel
cell works and its advantages.
Or
Describe in detail about the principle and
application of PEM and Solid oxide fuel cells.
Sub. Code
507201
RW-11079
2
Wk 14
4. Explain in detail about principles and advantages of
nanomagnetic behaviour and magnetic reversal.
Or
Explain in detail about
Magnetic recording
Nanodisk and nanoring memories and
Magnetic switches.
5. Write an essay about nanohazard and nanotoxicity
with precautionary assessment.
Or
Write short notes
Cytotoxicity
Environmental effects and
Evaluation of consumer exposure to
nanomaterials.