M.Sc. DEGREE EXAMINATION, FEBRUARY 2018.
Fourth Semester
Physics
Paper 401 ADVANCES IN PHYSICS
2 20741-A
Time 3 Hours Max. Marks 70
SECTION — A
(Short Answer Type)
Answer any FIVE of the following. 6 30 Marks)
1. Explain the quantum confinement in nanomaterials.
2. Write a note on nano-filtration.
3. Explain the basic structure of MEMS
4. Discuss the plasmons propagation in wave guides.
5. Briefly explain the memory organization in 8051 microcontroller.
6. Explain the data transfer and arithmetic instructions in 8051.
7. Explain the concept of remote sensing.
8. Explain the application of remote sensing in environmental management.
SECTION — B
(Essay Answer Type) 10 40 Marks)
Answer ALL questions.
9. Distinguish between zero, one and two dimensional nanostructures and
explain its dependence of dimensionality.
Or
Explain in detail the sol-gel process in the fabrication of nanomaterials with
the help of flow chart.

10. Explain the principle and working of Inertial sensors using MEMS.
Or
Distinguish between quantum well and quantum dot devices and explain the
working of carbon nanotube emitter.
11. Explain in detail the internal architecture of 8051 microcontroller.
Or
Explain the Boolean variable manipulation instructions in detail in 8051.
12. Explain the characteristics of electromagnetic radiation and its spectrum.
Or
Explain the remote sensing platforms and discuss the sources of remote
sensing information.
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