BIOTECHNOLOGY Nanobiotechnology,B.Sc. – III (Semester – VI),Solapur University Question Paper,2014 Question Paper

Solapur University Question Paper
B.Sc. – III (Semester – VI) Examination, 2014
BIOTECHNOLOGY
Nanobiotechnology
Day and Date : Tuesday, 15-4-2014 Max. Marks : 50
Time : 11.00 a.m. to 1.00 p.m.
N.B. : 1) All questions are compulsory.
2) Figures to the right indicates full marks.
3) Draw diagrams wherever necessary.
1. Rewrite the following sentence by choosing the correct alternative. 10
1) Electron beam lithography requires __________
a) ~10–5 torr vacuum b) CO2 gas
c) 1 atm H2 gas pressure d) Mixed air
2) E-beam lithography is used to ___________
a) Analysis of nanostructure b) Make nanostructure
c) Detect nanostructure d) Measure nanostructure
3) Use of plant extract for synthesis of nanoparticals is ___________ method.
a) Physical b) Chemical c) Biological d) Mechanical
4) When atoms are brought together in a fixed structure they form ___________
a) Mixture b) Molecule c) Alloy d) Biosystem
5) For measurement of nanostructure ___________ is used.
a) Lithography b) Microemulsion
c) Colloids d) TEM
6) In UV-Vis-NIR spectroscopy the range of wavelength of light used is
___________
a) ~ 200 nm to ~ 400 nm b) ~ 400 nm to ~ 700 nm
c) ~ 400 nm to ~ 3000 nm d) ~ 200 nm to ~ 3000 nm
7) In __________ atoms and molecules are removed from bulk material to attain
required size and shape of nanomaterials.
a) Top down approach b) Top up approach
c) Bottom up approach d) Bottom down approach
SLR-D – 40
8) A device giving a signal for the detection or measurement of a physical
(chemical) property to which it respond is called __________
a) Motor b) Polymer c) Sensor d) Drug
9) The current (I) flowing through circuit across the voltage applied (V) with a
resistance of material (R), then the relationship V = IR is given by __________
a) Faraday’s law b) Ohm’s law
c) Thermodynamics law d) Coulomb’s law
10) In scanning electron microscope ___________ electrons are detected.
a) Backscattered b) Transmitted
c) Secondary d) Both a) and c)
2. Answer any five of the following : 10
a) What is Coulomb’s law ?
b) Give time independent Schrödinger equation in three dimensions.
c) Which materials are used for nanotechnology ? One example each.
d) Enlist the different spectroscopic techniques used in analysis of nanomaterials.
e) What are colloids ?
f) Draw neat labelled ray diagram of simplest optical microscope.
3. A) Answer any two of the following : 6
a) Write a note on quantum theory.
b) Give the structural properties of nanomaterials.
c) Explain synthesis of nanoparticals using plant extract.
B) Explain synthesis of colloids with suitable diagram. 4
4. Answer any two of the following : 10
a) Explain the lithography tool for making nanostructure.
b) Explain principle, working and application of Transmission Electron Microsocpe
(TEM) with suitable diagram.
c) Explain in detail microemulsion method for synthesis of nanoparticals.
5. Answer any two of the following : 10
a) Describe in detail sensors.
b) Write a note on electrical conductivity of nanoparticals.
c) Give application of nanoparticals in human health.
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