| Post Name | SCIENTIFIC ASSISTANT (DOCUMENTS) |
|---|---|
| Department | POLICE (FORENSIC SCIENCE LABORATORY) |
| Question Paper Code | 020/2016 |
| Date of Test | 3 February 2016 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The ratio of mobility of holes to mobility of electrons 1s :
Answer
A. 1:2 (
2
What happens to the Fermi level if an intrinsic semiconductor is doped with acceptor atoms?
Answer
C. Slightly lowered
3
PIN diodes are used in which frequency range?
Answer
D. Greater than 300MHz
4
Which of the following is not true for a common collector amplifier?
Answer
B. Voltage gain is high
5
The coefficient of the term (z â 1)² in the Taylor's series of the function f(z) = 1/(z² â 9) about the point z = 1 is:
Answer
D. â3/128
6
If the uncertainty in the velocity of a particle is equal to its velocity, what is the order of
uncertainty in its location?
Answer
B. A
7
The energy of the particle in three dimensional cubic box of length L is given by omEzâ
then the degeneracy of the state 1s -
Answer
C. 6
8
Ifthe operators A and B commute with H and
Answer
B. = C, where C is another operator, then :
9
If the quantum mechanical operators of two observables of a system do not commute, then :
Answer
A. The observables are said to be incompatible
10
The observables are said to be compatible
Answer
A. 0.21eV
11
The ground state of a linear harmonic oscillator is:
Answer
B. Gaussian function
12
The ground state of a linear harmonic oscillator is -
Answer
D. Bessel function
13
Consider a 6 particle system with 5 particles arranged as a regular pentagon with the 6th particle at the centre. If all the 5 particles are connected to the central one by rigid rods, then the number of degrees of freedom for the system is :
Answer
A. 13
14
Consider a 6 particle system with 5 particles arranged as a regular pentagon with the
6" particle at the centre. If all the 5 particles are connected to the central one by rigid rods, )
then the number of degrees of freedom for the system is:
Answer
C. 5
15
The homogeneity of time leads to the law of conservation of - )
Answer
C. Energy
16
If a particle move in a horizontal plane in a central force potential U(r), which of the
following physical quantities are conserved :
Answer
D. Linear momentum and energy
17
For what value of ι and β do the equations Q = q^ι cos βp, P = q^ι sin βp, represent a canonical transformation:
Answer
C. ι = 1/2; β = 2
18
If a particle has rest mass mâ and velocity c/2, then the momentum of the particle is:
Answer
D. mâc/â3
19
If a particle hasrest mass m, and velocity
Answer
C. Ń,Ń
20
If all the surfaces are closed in a region containing volume V, then which of the following
theorem is applicable?
Answer
C. Gauss Divergence theorem
21
What happens to velocity of light as it travels from a denser medium to a rarer medium?
Answer
B. Increases
22
What happens to velocity of light as it travels from a denser medium toa rarer medium?
Answer
C. Remains the same
23
Gibbs paradox in statistical mechanics is related to the additive property of :
Answer
A. Energy
24
A canonical ensemble represents:
Answer
B. An equilibrium system with a fixed volume and a fixed number of particles which can exchange energy with the surroundings
25
A canonical ensemble represents :
Answer
B. An equilibrium system with a fixed volume and a fixed number of particles which
can exchange energy with the surroundings
26
What is toa nuclear physicist as Hydrogen is to an Atomic physicist?
Answer
C. Deuterium
27
Which of the folowing statement about nuclear force is wrong?
Answer
C. Always attractive
28
The ratio of energies of thermal neutrons to slow neutrons in keV is:
Answer
A. 25 Ă 10âťâś : 1
29
The ratio of energies of thermal neutrons to slow neutrons in keÂĽ is:
Answer
D. 1:25x10"
F
30
The electric field due to a charge q is given by Eâ = q râ/rÂł. The value of the surface integral ⏠Eâ ¡ dSâ depends on:
Answer
D. The charge
31
âThe electric field due to a charge q is given by # = a The value of the surface integral
r
{j E-dS depends on :
Answer
B. The radial distance r
32
The field of magnetic vector B is always :
Answer
D. Both irrotational and non-solenoidal
33
Eight electric dipoles of charges of magnitude âeâ are placed inside a cube .The total electric
flux coming out of the cube will be :
Be 6
Answer
C. a3.
A point charge 1s
6
Se
34
A point charge 1s placed at the centre of a spherical Gaussian aurface. The electric flux
crossing the surface will change if :
Answer
B. The point charge is moved off from the centre but still remains inside the sphere
35
Which of the following involves the four concepts of discrete energy levels, Larmor precession, space quantization and L-S coupling?
Answer
D. Zeeman effect
36
Which of the following molecules does not exhibit a rotational spectrum?
Answer
A. Hâ
37
Which of the following involves the four concepts of discrete energy levels, Larmorprecession,
space quantization and L-S coupling?
Answer
B. Frank-Hertz Experiment
38
Which of the following molecules does not exhibit a rotational spectrum?
Answer
D. HBr
39
For a specimen of V2Ga, the critical fields are 0.176GT and 0.528T at 14K and 13K respectively,
Calculate the transition temperature :
Answer
B. 145K
40
In which of the following cases an atom is expected to possess nuclear magnetic moment?
Answer
C. Nucleus has only neutrons
ae
41
Gold at nano scale is:
Answer
B. Red in colour
42
Which of the following is not an object oriented programming language?
Answer
D. Ruby |
43
The point group of ammonia molecule is : |
Answer
A. CV
44
Number of microstates for dâ configuration is :
Answer
A. 100
45
What is the term symbol arising from the ground state electronic configuration of Naâ
(A) *S, (B) *P,
2 7
(C) âFP, "5,
a
Which among the following is the strongest conjugate baseâ?
Answer
C. c) SO
46
Which among the following is thermodynamically the most stable allotropic form of carbon at
normal temperatures and pressures?
Answer
Question Cancelled
47
The oxidation number of P in pyrophosphorous acid 1s -
Answer
A. +2
48
The strongest reducing agent amongst the following 18 :
(A) BiH, (B) NH,
(C) AsH, () PH,
A graphical representation of free energy Vs. temperature for the formation of oxides of
elements 1s:
Answer
B. Ellingham diagram
49
Giderite is an ore of : |
Answer
D. Fe
50
For noble gases, the electronic partition function has a value of :
Answer
B. 1
51
Cross Cannizzaro reaction is given by :
Answer
C. Benzaldehyde, Formaldehyde
52
Todoform test is not given by :
Answer
A. 3-Pentanone
53
Which of the following is not aromatic?
Answer
C. Cyclobutadiene
54
Aliphatic polyamides are generally known as : |
Answer
D. WNylones
55
Stereoisomer'âs resulting from the restricted rotation about the single bonds, where the
rotational barrier is high enough to permit isolation of the isomeric species are called :
Answer
A. Atropisomers
56
An anomalous ORD
Answer
C. Cotton effect
57
Esters having an
Answer
A. Claisen condensation
58
The heating of an acyl azide to an isocyanate is known as:
Answer
D. Curtius rearrangement
59
Anhydrous A/CQis not used as a reagent in:
Answer
B. Birch reduction
60
The hereditary shortage of ceruloplasmin resulting in the accumulation of copper in liver,
kidneys and brain is :
Answer
C. Wilson's disease
61
Which among the following is not a Haem metalloprotein?
Answer
A. Haemerythrin
62
Consider the following ligand substitution reaction : V(CO), + PR, > V(CO),(PR,) + CO . The
reaction rate exhibits the following dependence upon the identity of the phosphorous
nucleophile used, PMe, > PBu, > P(OMe), > PPh,. Identify the type of reaction ;
|
Answer
A. Associative
63
Which compound is most likely to undergo oxidative addition of Hz?
Answer
B. [RhCIPPh,)]
64
âThe spin only magnetic moment of the complex [Mn(en),Cl, | is:
Answer
D. 5.92 ub
65
Linkage isomerism in coordination compounds is due to:
Answer
C. Ambidentate ligand
66
An equation that represents the exact relationship between the adsorption and the change of |
surface tension of the solvent due to presence of a solute is known as:
Answer
D. Gibbs adsorption equation
67
The electric field which is created when charged particles move relative to a stationary liquid
is known as:
Answer
D. Sedimentation potential
68
Thermodynamically, formation erystal defects 1s an :
Answer
B. Endothermic process
69
The superconductivity is destroyed when the current in the superconductor exceeds a critical
current and this effect is known as :
Answer
B. Silsbee effect
70
The microscopic techniques, which is based on the cantilever principle is:
Answer
B. Atomic Force Microscopy
71
âThe spectroscopic technique that deals with the emission of secondary electron is :
Answer
D. Auger electron spectroscopy
72
The ESR spectrum of benzene radical (.C,H, )is :
Answer
A. Septet
73
Identify the organic compound, which shows a septet around 1.5 ppm and a doublet around
0.9 ppm in the âA nuclear magnetic resonance spectrum ;
Answer
C. H,),CHNO,
74
Which is the analytical technique based on the principle of selective adsorption?
Answer
B. Chromatography
75
Electron, proton and neutrons belong to the class of :
Answer
C. Fermions
76
If the partition function of systems A and B are ¢, and ¢, and their energies Ea and Ep
respectively. What will be the total partition function and total energy of the two systems?
Answer
C. 9,x¢@, and b+ Ky
77
Ina grand canonical ensemble, which all parameters are the same for all members of the
ensemble?
Answer
B. y ih ae
78
The order of radioactive disintegration is :
Answer
D. 1
. |
79
Identify the transformation, which has a negative value for enthalpy change - |
Answer
Question Cancelled
80
Joule-Thomeon expansion is : . |
Answer
A. lsenthalpic
81
âThe only officer allowed to participate in the deliberations of the Indian Parliament is :
Answer
B. Attorney General
82
Indian Federation is based on the pattern of
Answer
D. - Canada
83
Article 280 of the Indian Constitution deals with :
Answer
A. Finance Commission
84
The power of the Supreme Court of India to decide dispute between the Centre and the State
falls under ite :
Answer
C. Original jurisdiction
85
The words âSocialistâ and âSecularâ were added to the Preamble by :
Answer
D. 42"? Amendment
86
A comprehensive scheme for prevention of Trafficking and Rescue Rehabilitation and
Reintegration of victimsâ :
Answer
B. Ujjawala
87
The World Environment Day is observed on :
Answer
C. 6 June
88
The Right to Information Act was passed in the year :
Answer
A. 2005
89
The first Characteristic Malayalam novel : |
Answer
B. Indulekha
90
Pattini Jatha led by : |
Answer
D. A.K. Gopalan
A 13 020/2016
91
Tatwaprakasika Ashram started by :
Answer
A. Vaghbhatananda
92
The first Western Education School of Malabar was started by :
Answer
C. Rev. Habik
93
âAathmakadhakkoru Aamukhamâ is an autobiography of : ;
Answer
A. Lalithambika Antharjanam
94
The person who was not associated with Vaikom struggle :
Answer
C. C.P. Ramaswami lyer
95
Abhinjana Sakunthalam was translated into Malayalam by :
Answer
A. Kerala Varma Valiya Koyi Thamburan
96
The first computer literate Panchayat in India is: |
Answer
B. Vellanad |
97
Vana Mahotsava is associated with :
:
Answer
D. K.M. Munshi
98
Which programme introduced in school aimed at providing basic amenity to the schools?
Answer
C. Operation Black Board {
99
Who among the following has won the Wimbeldon Womenâs Singles Tennis Championship of 2015?
Answer
B. Serena Williams )
100
Union HRD Minister Smt. Smrithi [rani laid the foundation stone of Indian Institute of
Technology in the State of Kerala. It is being set up at :
Answer
D. Palakkad
020/2016 14 A
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