- Describe the top down methods by which nano materials are fabricated or synthesized?
- Explain how x ray diffraction can be used to characterize nano materials ?
- Define nanotechnology discuss its properties [electronic,industry and biofield complsn]
- State the acoustic requirements of good hall explain how these requirements can be achieved
- Describe the different methods of accoustic quieting. Describe describe various methods to achieve sound proofing
- Derive sabine’s formula and define reverberation
- Describe step index and graded index fibre and explain the transmission of signal through it
- Define acceptance angle and numerical aperture and derive the expression for both
- Draw the block diagram of optical fibre communication system and explain the functions of each block
- Derive the relations of einstien ‘s w efficient
- Explain the construction, principle and working of ruby laser
- Explain the construction, principle and working of He-Ne laser
- Explain the construction, principle and working of semiconductor laser
- a)Explain the origin of magnetic moment at atomic level b) What is bohr magneton?
- a)what are hard and soft magnetic materials? Give the applications b) What are ferrites
- Explain the detailed classification of magnetic materials on the basis of electron spin
- What is meissner effect?explain
- Write the applications of super conductors. What are type I and type II super conductors?
- Explain electronic polarizability and derive the expression for it
- Derive the relation between electronic polariability and dielectric constant for a cubic material (clausius mossoti relation) (local field also)
- Derive the expression for internal field
- Explain piezo electricity and ferro electricity
IMPORTANT QUESTIONS FOR III MID(GRAND TEST)
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