Department
of Physics - Dr.Zahir Husain College, Ilyangudi.
Fundamentals
of Nanoscience – 4BPHE3C
Time:
3 Hours Max
Marks: 75
Part –
A (10 x 2 = 20)
Answer All the Questions
- Define Nanotechnology
- How surface to volume ratio is affected by the size of
nanoparticles.
- Define CNT’s.
- Give any two applications of CNT’s.
5. Define the top down approach.
6. Write the advantage of CVD method.
7.
List out advantages of Scanning tunneling microscopy.
8.
State the fundamental principle of transmission electron microscopy.
9.
Give the advantage of blue ray disk over
ordinary compact disk.
10. List any two applications of nanoparticles.
Part – B (5
x 5 = 25)
Answer All the Questions
11. Write note on nanomaterials.
(OR)
What are nanowires? List out their
properties.
- Describe the difference between SWCNT and MWCNT.
(OR)
Describe the plasma arc discharge synthesis technique for
production of CNT.
13. Explain
the lithography method for nanomaterial synthesis.
(OR)
Write note on self assembly
method.
- Describe the
instrumentation of scanning probe microscopy.
(OR)
Explain the working of AFM.
15. Compare various types of optical memories.
(OR)
Briefly describe nanomaterial
applications in biomedical field.
Part – C (3
x 10 = 30)
Answer any three Questions
- Describe various methods of nanomaterial synthesis.
- Describe the types of carbon nano tubes.
- Describe the sol-gel method for nanomaterial synthesis.
- Explain the principle and working of STM.
- Write an essay on nanolayer applications.