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B.TECH.
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THEORY EXAMINATION (SEM–IV) 2016-17
NANO SCIENCES
Time: 3 Hours Max. Marks : 100
Note: Be precise in your answer.
SECTION – A [2x10=20]
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1 Explain all parts in short.
- Nano diamond
- Quantum dots
- Fullerenes
- Luminescence
- Face cantered cubic nanoparticles
- Lattice Vibrations
- Excitons
- Magic Numbers
- Fermi Surfaces
- Trap levels
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SECTION-B [10x5=50]
Attempt any FIVE questions from this section.
- What are the carbon nanotubes and discuss its various properties.
- Give a detailed account of Quantum dot laser super conductivity.
- Write the interactions of electron with the materials and discuss the necessity of gold coating prior to SEM analysis for insulating samples.
- Give a detailed account of Atomic force microscopy and its application in nanoscience.
- Write the various growth techniques of nanomaterials and give a detailed account of thermal evaporation technique.
- What is Graphene? Discuss its applications in nanotechnology.
- What are localized particles, Give a detailed account of donors, accepters and deep traps.
- Write the working principal of Raman Spectroscopy and its various applications in nanoscience.
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SECTION-C [15x2=30]
Attempt any TWO questions from this section.
- Deduce the time dependent Schrodinger Wave Equation.
- Discuss in detail about inert gas and super fluid clusters.
- Define microscope and give a detailed account of transmission electron microscopy.
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