M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Nano-Technology
INDUSTRIAL NANOTECHNOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: Part-I, question 1 is compulsory.
Attempt any four questions from Part II
Figures to the right indicate full marks.
Answers to the Part I and Part II are to be written in same answer
booklet only.
PART I
Q.1 Rewrite the sentence after choosing correct answer from the given
alternatives:
07
Diffusion is the movement of impurity atoms in a semiconductor
material at
keep remove
transfer high temperatures
Magnetism is a class of physical phenomena that are mediated by

Magnetic and electric fields Electric fields
Magnetic fields None of these
A microactuator is a servomechanism that supplies
and transmits a measured amount of energy.
Miliscopic Nanoscopic
Microscopic Megascopic
Mechanical sensor is a class of a sensor to measure
phenomenon.
Mechanical Chemical
Physical All these above
Light emission is commonly used to mean radiation in the visible
wavelength range due to photons emitted by discrete
and ICs.
Insulating devices Conducting devices
Semiconductor devices None of these
Excitons are similar to forming polarons.
Weak-coupling Strong-coupling
More-coupling Less-coupling
An electric battery is a device consisting of one or more
cells.
Electrochemical Mechanical
Physical All of these
Page 2 of 2
SLR-VT-538
Q.1 Define the following terms. 07
Electro-optical semiconductor
Photoinduced magnetism
NEMS
Chemical Sensors
Conducting polymers
Excimers
Lubricants
PART II
Answer any four of the following:
Q.2 Describe fabrication techniques of semiconductors. 14
Q.3 Give an brief explanation on Magnetic solids and magnetic domains. 14
Q.4 With a neat diagram explain Microelectromechanical systems. 14
Q.5 Explain mechanical and chemical sensors with its applications. 14
Q.6 Answer any two of the following: 14
Describe conducting polymers
Explain molecular crystals
Organic electroluminescent
Q.7 Attempt any two of the following:- 14
Write short note on nanomaterials in bone substitutes
Applications of antimicrobial
Applications in textiles