Shivaji University Entrance Exam 2020 Question Paper M.Sc Nano Science

Seat Paper Code(ENT202030)
No.
M.Sc Entrance Exam , MAY-2020

71144-Nano Science and Technology Ent. Exam

Day And Date : Tuesday 10/11/2020 Total Marks : 100
Time : 13:30 To 15:00
Marks
1 1

2 1

3 Passive transducers are based on ........ principle. 1
A) Energy conversion
B) Energy controlling
C) None of Above
D) Both A and B
4 A typical example of chromophore is …………. 1
A) C=O
B) OH
C) NH2
D) Cl
5 Geometrical isomerism is shown only by compounds containing ……. Center. 1
A) Chiral
B) Achiral
C) Olefinic
D) All of these
6 What is the Colour emission & Wavelength of Silver Nanoparticles? 1
A) Red,650nm
B) Indigo Light,444nm
C) Yellow,570nm
D) Green,510nm
7 Following is the secondary pollutants....... 1
A) PAN
B) CO
C) SO2
D) None of the above

8 S layer are composed of 1
A) Glycoproteins
B) Proteins
C) Both
D) None
9 Nanochemistry is the combination of ……. 1
A) Chemistry and Nanoscience
B) Chemistry and engineering
C) Chemistry and Physics
D) All of the above
10 Which disease is a major focus for nanotechnology? 1
A) Hair loss
B) AIDS
C) Cancer
D) Tooth decay
11 The growth of small nuclei clusters to nanoparticles is referred to as 1
A) Condensation
B) Nucleation
C) Supersaturation
D) Agglomeration
12 Temperature is a measure of……….. 1
A) degree of hotness
B) the heat of the body
C) both (a) and (b)
D) none of the above
13 1

14 1

15 1

16 In-plane diffraction grating with white light as the source the central fringe is 1
………..
A) white
B) blue
C) red
D) dark (black)
17 Plane of vibration and plane of polarization are mutually …………………….. 1
A) perpendicular
B) parallel
C) antiparallel
D) inclined at 45 degree
18 In which process entropy of a system increases? 1
A) a reversible process
B) an adiabatic process
C) a natural process
D) none of the above
19 1

20 In Maxwell Bridge, the balance equation is independent of ……. 1
A) Resistance
B) Capacitance
C) Frequency
D) Charge
21 …… an error cannot be treated mathematically. 1
A) Gross
B) Instrumental
C) Observational
D) Human
22 Mercury in a glass thermometer is an example of …….. order instrument 1
A) Zero
B) First
C) Second
D) Third

23 The load cell is used to measure ……. 1
A) Stress
B) Temperature
C) Resistance
D) Current
24 A catalyst increases the rate of a reaction by: 1
A) Increasing activation energy
B) Increasing temperature
C) Decreasing activation energy
D) Decreasing temperature
25 The efficiency of today’s best solar cell is about 1
A) 15-20%
B) 40%
C) 50%
D) 75%
26 Which of the following is the principal factor which causes the properties of 1
nanomaterials to differ significantly from other materials?
A) Size distribution
B) Specific surface feature
C) Quantum size effects
D) All the mentioned
27 1

28 The time taken for 10% completion of a first order reaction is 20 min. Then, for 1
19% completion, the reaction will take…………………..
A) 40 mins
B) 60 mins
C) 50 mins
D) 30 min
29 The magnitude of ∆0 value will depend upon 1
A) Charge of the central metal ion
B) Nature of ligand
C) Principal quantum number of the d –electron
D) All the above.
30 The size of E.coli Bacteria is 1
A) 30nm
B) 300nm
C) 3000nm
D) 1nm

31 Which of the following nanoparticles mostly uses for antimicrobial purpose in water 1
pollution treatment
A) Magnesium
B) Iron
C) Silver
D) Cadmium
32 In, Photolithography technique, radiation sensitive materials that usually consist of 1
a photo-sensitive compound, a polymeric backbone, and a solvent is called as
A) Wafer
B) Mask Alignment
C) Photoresist
D) Substrate
33 The interference fringes due to a thin wedge-shaped film are fringes of 1
…………….
A) equal thickness
B) equal length
C) equal inclination
D) equal height
34 1

35 The intensity of any spectral line depends on ………………….. 1
A) Transition probability
B) No. of molecules in in each level
C) population of energy levels
D) All of above
36 1

37 1

38 Output impendence of an Ideal Instrumentation Amplifier is …. Ω 1
A) Zero
B) Infinity
C) One
D) Ten
39 Bioinspired nanomaterials are 1
A) Biotemplate
B) Biomimic
C) Both
D) None
40 1

41 Which of the following is a first biosensor 1
A) Glucose biosensor
B) Cholesterol biosensor
C) Both
D) None
42 1

43 Aldol condensation is shown by aldehydes ……. 1
A) Carrying hydrogen atom
B) Not carrying hydrogen atom
C) Other than formaldehyde
D) Carrying alpha hydrogen atom
44 Zero valent iron nanoparticles widely use as remediation application in 1
…….pollution
A) Air pollution
B) Marine pollution
C) Ground water pollution
D) Noise pollution
45 1

46 The frequency separation of successive lines will be ……………for heavier 1
isotopic molecule than for a lighter one.
A) greater
B) smaller
C) constant
D) None of these
47 For a linear molecule having ‘n’ atoms, modes of vibrations are -------- 1
A) 3n-5
B) 3n-6
C) n-5
D) n-6
48 Absorption and emission of Fluorescent molecule is observed in the 1
………………………. region of spectrum
A) Infrared
B) UV- Visible
C) Radio waves
D) X ray
49 Only those radiations which are absorbed by the molecule are effective in 1
producing chemical change is the statement of …………….. law
A) Grotthus-Draper
B) Lambert
C) Lambert-Beer
D) Einstein
50 Quantum yield depends on …………………………. 1
A) Temperature
B) Wavelength
C) Light intensity
D) All of these

51 The quantum number which accounts for the splitting up of spectral line (Zeeman 1
effect)………...
A) Principal quantum number
B) Azimuthal or angular quantum number
C) Magnetic quantum number
D) spin quantum number
52 Most of the hard acids and hard bases form------ 1
A) Covalent
B) ionic
C) Either covalent or ionic
D) Both ionic and covalent.
53 For dimer degree of polymer is ----- 1
A) 1
B) 2
C) 3
D) 4
54 ------polymer offers a greater resistance to the oxidation and pyrolysis 1
A) Inorganic
B) b) Natural
C) Synthetic
D) Organic
55 Ethers are isomeric with ………... 1
A) Aldehydes
B) Ketones
C) Alcohols
D) Phenols
56 The size of red and white blood cells is in the range of _____μm 1
A) 2-5
B) 5-7
C) 7-10
D) 10-15
57 1

58 Liposomes are made of 1
A) Proteins
B) Phospholipids
C) Cellulose
D) Ribosomes
59 Which formulation contains nanoparticle prepared by using biologically processed 1
metal ores
A) Homeopathic medicines
B) Modern antibiotics
C) Ayurvedic 'Bhasmas'
D) Modern cosmetics
60 Which of these arts contains Nanotechnology? 1
A) Lycurgus cup
B) Medieval stained glass windows in churches
C) Damascus steel swords
D) All of the above
61 Self replicating nanorobots holds 1
A) Bacteria
B) Algae
C) Virus
D) Fungi
62 Biological synthesis is synthesis of nanomaterial from 1
A) Plant
B) Microbes
C) Both
D) None
63 Which ratio decides the efficiency of Nanoparticles? 1
A) Weight/Volume Ratio
B) Surface Area/Volume Ratio
C) Volume/Weight Ratio
D) Pressure/Volume Ratio
64 Protein cage are a)Bioinspired structure 1
A) Bioinspired structure
B) Biotemplate
C) Both
D) None
65 The size of quantum dots______nm? 1
A) 5nm
B) 10nm
C) 50nm
D) 100nm
66 The change in optical properties of Nanomaterials is due which of the following 1
phenomenon?
A) Iridescence
B) Bioluminescence
C) Energy Conservation
D) Surface Plasmons

67 Liposomes are 1
A) Lipid bilayer enclosing aqueous core
B) Protein bilayer enclosing aqueous core
C) Both
D) None
68 Inorganic polymers do not contain ------in their back bone 1
A) C
B) P
C) Si
D) B
69 The prefix “Nano” comes from a word ________? 1
A) French word meaning billion
B) Spanish word meaning particle
C) Latin Word meaning invisible
D) Greek word meaning dwarf
70 What are the two most abundant elements by mass found in Earth's crust 1
A) Al & Fe
B) Na & Cl
C) Ca & Mg
D) O2 & Si
71 Which one of the following technique is used in formation of nanoemulsion 1
A) Co-precipitation
B) Sol-gel
C) Hot Plate method
D) High Pressure homogenization
72 The “Gecko Feet” adhesive is due to nanostructures called______? 1
A) Trichomes
B) Spatulae
C) Scansors
D) Setae
73 Air pollution from automobiles can be controlled by fitting? 1
A) Cyclone separator
B) Electrostatic precipitator
C) Catalytic converter
D) None of the above
74 Biological Nanomoter are made up of 1
A) DNA
B) RNA
C) Protein
D) None
75 ………………are allotrope of carbon with a cylindrical nanostructure. 1
A) Graphene
B) Carbon nanotube
C) Carbon dot
D) Fullerene

76 In water pollution the parameter COD means .......... 1
A) Chemical Oxygen Demand
B) Chemical organic Demand
C) Chemistry organically dextrose
D) Chemical organic dextrose
77 Which of the following is example of biological treatment ? 1
A) Activated sludge
B) filtration
C) chlorination
D) none of the above
78 ………………is the process by which nanotopographical etchings are artificially 1
produced on a surface
A) Photolithography
B) Electron beam lithography
C) X ray lithography
D) all of the above
79 Free electron theory was introduced by -------- 1
A) Drude .
B) Pauling
C) Block
D) Faraday
80 These biological treatment use bio films of microorganism ---- 1
A) Trickling filters
B) grit chambers
C) Activated Sludge Process
D) None of the above
81 G band in Raman spectra of graphene indicate…….. 1
A) disordered structure of graphene
B) c-c vibrational mode
C) impurities present
D) None of these
82 Who first used the term nanotechnology and when? 1
A) Eric Drexler, 1986
B) Sumio Iijima, 1991
C) Norio Taniguchi, 1974
D) Richard Feynman, 1959
83 Who was the first scientists to describe the substances having nanodimensions 1
possess all together different & unique properties?
A) Richard Feynmann
B) Eric Drexler
C) Archimedes
D) Michael Faraday
84 Fullerene or bucky ball is made up of ____ carbon atoms. 1
A) 100
B) 75
C) 20
D) 60

85 The Surface Area to Volume Ratio of a sphere with radius 1cm is R1 & that of 1
sphere with radius 5cm is R2.Then R1=______R2?
A) 3
B) 1/3
C) 5
D) 1/5
86 What is quantum dots? 1
A) A semiconductor nanostructure that confines the motion of conduction band
electrons,valence band holes or exciton in all three spatial directions
B) A fictional term used in Science fiction for the end point of Wormholes
C) The sharpest possible tip of an AFM
D) Unexplained spots that appear in Electron Microscopy image of Nanostructure
smaller than 1nm.
87 Fullerene or buckyball is generally made up of ……carbon atoms 1
A) 100
B) 75
C) 20
D) 60
88 1 m = _____ nm 1

89 Quantum confinement results in 1
A) Energy gap in semiconductor is proportional to the inverse of the square root of
size
B) Energy gap in semiconductor is proportional to the inverse of the size
C) Energy gap in semiconductor is proportional to the square of size
D) Energy gap in semiconductor is proportional to the inverse of the square of size
90 Concept of superconductivity was introduced by -------- 1
A) Pauling
B) Hund
C) H.Bethe
D) Kammerling
91 _________enables the production of nanoparticles containing various elements in 1
this process in order to avoid inhomogeneities and phase separation, all species
have to be precipitated simultaneously.
A) Supersaturation
B) Anodization
C) Co-Precipitation
D) Molecular Self Assembly
92 In Newton’s rings experiment, a plano-convex lens of ……………. radius of 1
curvature is used
A) Small
B) Very small
C) Moderate
D) large

93 All natural process are …………… process. 1
A) isothermal
B) reversible
C) irreversible
D) isobaric
94 1

95 A heat engine with 100% efficiency is…… 1
A) possible
B) impossible
C) practicable
D) none of the above
96 In a L-C-R circuit, at resonance, the current drawn is …… 1
A) maximum
B) minimum
C) zero
D) none of the above
97 1

98 Spring balance is an example of ……. Order of system 1
A) Zero
B) First
C) Second
D) Third
99 ……. is an electromechanical device which converts sound waves into an 1
electrical signal.
A) Microphone
B) Loud Speaker
C) Oscillator
D) Amplifier
100 The slew rate of an Ideal Instrumentation Amplifier is … 1
A) Infinity
B) Zero
C) One
D) Ten