27-11-2018 LECTURER IN PHYSICS

LECTURER IN PHYSICS

EXAM DATE:27-11-2018

1.Who was the K.P.C.C. President at the time of Indian Independents?

A.K.Kelappan

B.Panampilly Govindamenon

C.C.Kesavan

D.Pattom.A.Thanupillai

Ans:A

2.First annual session of SNDP was help at which of the following places?

A.Aluva

B.Aruvipuram

C.Varkala

D.Sivagiri

Ans:B

3.Who was the author of ‘Jathikummi’?

A.Pandit Karuppan

B.Kumaranassan

C.Sree Narayana Guru

D.Thycaud Ayya Vaikundar

Ans:A

4.Among the following organisations which one is the oldest?

A.Araya Samajam

B.Samthwa Samajam

C.Yogakshema Sabha

D.Ananda Mahasabha

Ans:B

5.Among the following reforms who is not belongs to the upliftment of Namboothiri Women?

A.Lalithambika Antharjanam
B.Parvathi Nenmenimangalam

C.Arya Pallam

D.Devaki Antharjanam

Ans:D

6.Name the first unmanned Tank developed by DRDO in India recently

A.Arjun

B.Arihant

C.Sivalik

D.Muntra

Ans:D

7.Who was FIFA under 17 World Cup foot ball?

A.England

B.Spain

C.Brazil

D.India

Ans:A

8.Who is the winner of Vayalar Award 2017?

A.U.K.Kumaran

B.K.R.Meera

C.Subashchandran

D.T.D.Ramakrishnan

Ans:D

9.Who is appointed as the ‘15^(th)’ Finance Commission Chairman of India?

A.Y.V.Reddy

B.C.Rangarajan

C.N.K.Singh

D.Dr.Vijay Kelkar

Ans:C

10.What is the ordinal status of Antonio Gutters among the secretary Generals of UNO?

A.Tenth

B.Seventh

C.Ninth

D.Eighth

Ans:C

11.The maximum number of eigen values of an n’xx’ n matrix is

A.n

B.’n^(2)’

C.2n

D.’(1)/(2)n(n-1)’

Ans:A

12.Which among the following is a mathematically incorrect operation?

A.Grad div

B.Div curl

C.Grad curl

D.Curl grad

Ans:C

13.In cylindrical co-ordinates,where surface ‘rho’=3 and z=2 intersect is

A.A finite plane

B.A semi infinte plane

C.A cylinder

D.A circle

Ans:D

14.For a Fourier transform,which of the following statements is correct’’?

A.FT of an even function is even and that of an odd function is odd

B.FT of an even function is odd and the of an odd function is even

C.FT of an even function is even and that of an odd function is even

D.FT of an even function is odd and that of an odd function is odd

Ans:A

15.The complex function ‘Z^((1)/(2))’ is

A.Single valued

B.Double valued

C.N-valued

D.2N-valued

Ans:B

16.If ‘A_(ij)’and ‘B^(ik)’ are two tensors and ‘A_(ij)B^(ik)=delta^(k)_j’ the Kronecker Delta,then ‘A_(ij)’ and ‘B^(ik)’ are

A.Associate tensors

B.Conjugate tensors

C.Symmetric tensors

D.Fundamental tensors

Ans:B

17.If ‘P_(n)(x)’ represents the Legendre polynomials,the value of ‘int_-1^1[P_(2)(x)]^(2) dx’ is

A.’(2)/(3)’

B.’(1)/(3)’

C.’(2)/(5)’

D.’(3)/(5)’

Ans:C

18.The value of ‘int_c(4-3z)/(z(z-1)(z-2)’ dz where c is the circle |z|=’(1)/(2)’ is

A.2’ Pii’

B.’8Pii’

C.’4Pii’

D.Zero

Ans:C

19.The value of a so that the vector (2x+3y)i+(5y-2z)j+(7x+alpha z)k is solenoidal is

A.1

B.4

C.5

D.7

Ans:D

20.For a system in which the Lagrangian is not an explicit function of time,the Hamiltonian is

A.Constant

B.Infinity

C.Zero

D.None of these

Ans:A

21.For a system of two coupled oscillators,the total number of normal modes is

A.1

B.2

C.3

D.4

Ans:B

22.In the short wavelength limit,the schrodinger equation reduces to

A.Lagrange’s equation

B.Euler-Lagrange equation

C.Hamilton’s equations

D.Hamilton-Jocobi equation

Ans:D

23.What is the dimension of the fractal-Cantor set?

A.0.52

B.0.63

C.0.74

D.0.85

Ans:B

24.If [F,H] represents the Poisson bracket between an arbitrary function F and the Hamiltonian of a system H,the equation of motion will be

A.’(df)/(dt)’=[F,H]

B.’(dF)/(dt)’=[H,F]

C.’(dF)/(dt)=(delF)/(delt)+[F,H]’

D.’(dF)/(dt)=(delF)/(delt)+[H,F]’

Ans:C

25.The maximum number of rotational degrees of freedom possible for a rigid body is

A.1

B.2

C.6

D.3

Ans:D

26.If ‘a_(0)’ donates the Bohr radius,the most probable distance of the electron from the nucleus in a Hydrogen atom in its ground state is

A.’(a_(0))/(2)’

B.’a_(0)’

C.’2a_(0)’

D.’(3a_(0))/(2)’

Ans:B

27.The normalized wave functions ‘psi_(1)’ and ‘Psi_(2)’ correspond to the ground state and the first excited state of a particle in a potential.An operator A acts on the wave functions as A psi_(1)=Psi_(2)’ and A’Psi_(2)’=’Psi_(1)’.The expectation value of A for the state ‘psi’=’(3psi_(1)+4psi_(2))/(6)’is

A.0.67

B.0.33

C.0.44

D.0.82

Ans:A

28.The value of the commutator’[x^(4)’,’p_(x)]’is

A.ih

B.(ih) raise to 4

C.4ihx raise to 4

D.4 I h x raise to 3

Ans:D

29.Application of time independent perturbations to linear stark effect of hydrogen atom

A.Completely removes degeneracy of n=2 level and splits it into four levels

B.Partially removes  degeneracy of n=2 levels and splits it into three levels

C.Partially removes degeneracy of n=2 level and splits it into two levels

D.Does not remove degeneracy to any extent

Ans:B

30.The wave function of a particle is given by ‘Psi=(1)/(sqrt(2))phi_(0)’,where ‘phi_(0)’ is the normalized eigen function with energy ‘E_(0)’.The expectation value of the Hamiltonian in the state ‘psi’is

A.’E_(0)’

B.’(E_(0))/(sqrt(2))’

C.’(E_(0))/(2)’

D.’sqrt(2)E_(0)’

Ans:C

31.For a one dimensional potential well specified by V(x)=0 for –a<x<a and V(x)=’00’ for |x|>a,the zero point energy is

A.Some value greater than zero

B.Some value less than zero

C.Equal to zero

D.1/2 hw

Ans:A

32.The total spin angular momentum S of a system of three electrons is

A.’(1)/(2)’

B.0 and 1

C.1

D.’(1)/(2) and (3)/(2)’

Ans:D

33.The phase shifts measured for the elastic scattering of 50 MeV neutrons from a nucleus are ‘delta_(0)=90^(@)’;’delta_(1)=60^(@’.The total cross section is

A.’(13pi)/(k^(2))’

B.’(4pi)/(k^2))’

C.’(pi)/(k^((2))’

D.’(7pi)/(k^(2))’

Ans:A

34.For a Hermitian operator,the eigen values are

A.Zeros

B.Real

C.Complex

D.Imaginary

Ans:B

35.The eigen functions of angular momentum operator are

A.Bessel function

B.Gamma function

C.Hermite polynomials

D.Spherical harmonics

Ans:D

36.A charged particle is moving in a helical path under the influence of a constant magnetic field.The initial velocity of the particle is such that the component along the magnetic field is twice the component in the plane normal to the magnetic field.What will be the ratio of the pitch to the radius of the helical path?

A.’pi’/2

B.’pi’

C.2’pi’

D.4’pi’

Ans:D

37.A square wire loop carries a steady current I.Let R be the shortest distance from the centre to the side.What will be the magnetic field at the centre of the square loop?

A.’(mu_(0)I)/(piR)’

B.’(mu_(0)I)/(6piR)’

C.’(sqrt(2)mu_(0)I)/(piR)’

D.’(mu_(0)I)/(sqrt(2)piR)’

Ans:C

38.The magnetic field at a distance R from a straight wire carrying a steady current I is proportional to

A.I/R

B.IR

C.I/’R^(2)’

D.’I^(2)’/R

Ans:A

39.Which of the following thermodynamic relation is correct?

A.du=T dS+P dV

B.du=T dS-P dV

C.du=T dS+G dP

D.dU=T dS-G dP

Ans:B

40.Which mode of electromagnetic radiation cannot propagate through a rectangular waveguide?

A.TE

B.TM

TEM

D.All the above

Ans:C

41.Which is the least symmetric crystal system?

A.Cubic

B.Triclinic

C.Orthorhombic

D.Monoclinic

Ans:B

42.The amount of split in an energy level in the case of anomalous Zeeman effect due a magnetic field B,from non field level(where’mu_(B)’is the Bohr magnetron,’m_(j)’is the magnetic total angular momentum quantum number and g is the Lande g factor) is given by

A.’(gm_(j))/(mu_(B))B’

B.’(gmu_(B))/(m_(j))B’

C.g’mu_(B)m_(j)B’

D.’(m_(j)mu_(B))/(g)B’

Ans:C

43.The substances,which are expected to show electron spin resonance spectroscopy,are

A.Paramagnetic

B.Diamagnetic

C.Ferromagnetic

D.None  of these

Ans:A

44.The selection rule governing the transition between different energy levels in pure rotational Raman spectra,in terms of rotational quantum number J,is

A.Delta J=0 or ‘+-1’ only

B.Delta J=’+-1’ only

C.Delta J= 0 or ‘+-2’ only

D.Delta J=’+-2’ only

Ans:C

45.A radio wave has electric field intensity ‘10^(-4)’V’m^(-1)’ at the location of a receiving antenna.What will be the magnetic flux density?

A.Zero

B.3.3 ‘xx10^(-4)’T

C.1.1 ‘xx10^(-9)’T

D.3.3 ‘xx10^(-13)’T

Ans:D

46.The cut off frequency of  T’E_(10)’ dominant mode of an air filled rectangular wave guide of dimension x=8 cm and y=4 cm is 1875 MHz.What will be the cut off frequency of the T’E_(10)’ dominant mode for another wave guide of dimension x=8 cm and y=6 cm?

A.1875 MHz

B.1945 MHz

C.707 MHz

D.1947 MHz

Ans:A

47.The ratio of the electric field vector E and magnetic field vector H has the dimension of

A.Current

B.Resistance

C.Inductance

D.Capacitance

Ans:B

48.For the reverse leakage current of a BJT in CB(‘I_(CBO)’) and CE(‘I_(CEO)’)configuration,which among the following statements is true?

A.’I_(CBO)’>’I_(CEO)’

B.’I_(CBO)’=’I_(CEO)’

C.’I_(CBO)’<’I_(CEO)’

D.None of these

Ans:C

49.With a 1 MHz clock frequency,eight bits can be parallel entered into a shift register in

A.8 ‘mus’

B.Propagation delay time of eight flip flops

C.Propagation delay time of one flip flop

D.1’mus’

Ans:C

50.For an ideal OPAMP integrator circuit,the peak value of output voltage

A.Is independent of frequency of the signal

B.Decreases with frequency of the signal

C.Increases with frequency of the signal

D.Decreases with amplitude of the signal

Ans:B

51.In a 4 bit R-2R ladder digital to analog converter,R=10kOhm and ‘V_(ref)’is 10V.The current resolution of the converter is

A.10.5 ‘muA’

B.50.25 ‘muA’

C.62.5’muA’

D.6.25’ muA’

Ans:C

52.In the expression for the binding energy of a nucleus according to the liquid drop model,which among the following terms arises due to Pauli’s exclusion principle?

A.Volume term

B.Surface term

C.Pairing term

D.Asymmetry term

Ans:D

53.The strangeness quantum number S,in the Quark Model for up(u) and down(d) quarks are

A.zero for both u and d

B.+1 for both u and d

C.-1 for both u and d

D.-1 for u and +1 for d

Ans:A

54.The relation between the Einstein coefficients’A_(21)’and ‘B_(21)’ is

A.’(A_(21))/(B_(21))’=1

B.’(A_(21))/(B_(21))’=’(1)/(2)’

C.’(A_(21))/(B_(21))’=’(8pihv^(2))/(c^(2))’

D.’(A_(21))/(B_(21))’=’(8pihv^(3))/(c^(3))’

Ans:D

55.In a cannonical ensemble,the elements differ in their

A.Volume

B.Energy

C.Temperature

D.Number of particles

Ans:B

56.The Halmholtz free energy F,absolute temperature T and partition function Z of a canonical ensemble are related as

A.F=-kT in Z

B.F=kT in Z

C.F=-kTZ

D.F=kTZ

Ans:A

57.The mass defect per nucleon is called

A.Packing fraction

B.Quadrupole moment

C.Angular momentum

D.Binding energy

Ans:A

58.In how many directions,the electrons in a quantum dot are confined?

A.1

B.2

C.3

D.4

Ans:C

59.The energy versus wave vector graph of an electron in free space is a

A.Straight line

B.Parabola

C.Hyperbola

D.Circle

Ans:A

60.The bandgap energy of Gas is about

A.0.42 eV

B.1.42 eV

C.0.42 keV

D.1.42 keV

Ans:B

61.The light emission mechanism in LED is

A.Electroluminescence

B.Photoluminescence

C.Chemiluminescence

D.Thermoluminescence

Ans:A

62.In a first order phase transition,which among the following statements is true?

A.Volume is continuous at the boundary

B.Entropy is continuous at the boundary

C.Entropy is discontinuos at the boundary

D.A latent heat is not involved

Ans:C

63.The chemical potential of a photon gas is

A.Infinity

B.Finite

C.imaginary

D.Zero

Ans:D

64.When a particle of rest mass m attains the velocity of light,its mass becomes

A.Zero

B.M

C.Infinity

D.2m

Ans:C

65.For a conservative system,the slop of the potential energy versus position curve gives

A.Kinetic energy

B.Force

C.Power

D.Momentum

Ans:B

66.Are two simultaneous events,happening at the same point,simultaneous in all inertial frames?

A.Yes

B.No

C.Depends on the velocity of the frames

D.None of these

Ans:A

67.The critical field of a superconductor at the critical temperature is

A.Infinity

B.Zero

C.Finite

D.Depends on the superconductor

Ans:B

68.In a C60 fullerence molecule,how many pentagonal sides exist?

A.24

B.6

C.20

D.12

Ans:D

69.The open circuit voltage of a solar cell

A.Increases with temperature first and then decreases

B.Decreases with temperature first and then increase

C.Decreases with temperature

D.Increases with temperature

Ans:C

70.The bandwidth of an amplifier is the range of frequencies at the limits of  which its voltage gain falls by__________ from the maximum gain.

A.1 dB

B.3 dB

C.9 dB

D.70 dB

Ans:B

71.Which transistor configuration is commonly used for impedance matching?

A.Common emitter

B.Common base

C.Common collector

D.Common mode

Ans:C

72.What is the hybridization in graphene?

A.sp
B.sp2

C.sp3

D.sp4

Ans:B

73.What happens to the X-ray diffraction peaks from a polycrystalline solid,when its crystalline size decreases?

A.Become broad

B.Become narrow

C.No effect

D.Disappears

Ans:A

74.The fundamental effect that is used in the conversion of solar energy to heat energy is

A.Photovoltaic effect

B.Faraday effect

C.Joule-Kelvin effect

D.Green house effect

Ans:D

75.In biomass,the solar energy is stored in the form of

A.Electrical energy

B.Heat energy

C.Chemical energy

D.Mechanical energy

Ans:C

76.The dimensional of the phase space of a particle moving in a plane is

A.4

B.1

C.2

D.0

Ans:A

77.Which among the following is an elementary particle?

A.Neutron

B.Kaon

C.Electron

D.Sigma

Ans:C

78.The sodium D lines arise due to the transitions

A.From P state to S state

B.From F state to S state

C.From F state to D state

D.From D state to S state

Ans:A

79.The departure of relative permeability from unity is called

A.Magnetic field strength

B.Magnetic susceptibility

C.Magnetic flux density

D.Magnetizing field intensity

Ans:B

80.If the Hall co-efficient of a specimen is positive,the current conduction in the specimen is dominated by

A.Electrons

B.Phonons

C.Photons

D.Holes

Ans:D

81.The tools used to represent thoughts,ideas,knowledge and concepts are

A.Rubrics

B.Feedback tools

C.Renew and reflection tools

D.Graphic organizers

Ans:C

82.Which of the following is not a basic purpose of lecture method?

A.To motivate

B.To explore

C.To renew

D.To expand

Ans:B

83.Validity of a test means

A.Purposiveness

B.Objectiveness

C.Regularity

D.Consistency

Ans:A

84.The criterion which is least important while planning a learning experience?

A.Expertise of the teacher

B.Extent of realisation of objectives

C.Mental level of the learner

D.Practicability of the experience

Ans:A

85.Which of the following process skill uses a test under controlled conditions?

A.Experimenting

B.Hypothesizing

C.Inferring

D.Measuring

Ans:A

86.Which of the following assessment technique is most appropriate for assessing creative thinking in students?

A.Reasoning questions

B.Open ended questions

C.Logical questions

D.Hypothesising

Ans:B

87.The process of maintaining a gradation by which specific items are gradually presented one by one in the hierarchical order is

A.Progressive differentiation

B.Narration

C.Integrative Reconcillation

D.Exposition

Ans:A

88.Which is not considered as a self-reporting technique?

A.Questionnaire

B.Autobiography

C.Interview

D.Performance test

Ans:D

89.”A teacher should plough the sort before souring the seed”.This statement indicates

A.Preparing the technical support in advance

B.Planning innovative strategies for teaching

C.Developing a rapport with the students

D.Instilling an intrinsic motivation in students to learn

Ans:D

90.Skipping is an approach used to cater the needs of

A.Average learners

B.Differentially abled

C.Gifted

D.Slow learners

Ans:C

91.Who said the Constituent Assembly that the Directive Principles of State Policy are like a cheque on a bank payable at the convenience of the bank?

A.B.R.Ambedkar

B.Jawaharlal Nehru

C.K.T.Shah

D.N.Madhava Rao

Ans:C

92.’Contempt of court’place restriction on:

A.Right to equality

B.Right to freedom

C.Right to cultural and educational Rights

D.None of these

Ans:B

93.Which commission recommended the abolition of the IAS and IPS?

A.Shah Commission

B.Sarkaria Commission

C.Venkata Chalaiah Commission

D.Rajamannar Commission

Ans:D

94.The schem Antyodaya Anna Yojana(AAY)was launched by the government on:

A.26 January 1999

B.25 December 2000

C.31 May 2000

D.24 October 2005

Ans:B

95.The authorization for withdraw of funds from the consolidated fund of India must come from

A.The Parliament of India

B.The President of India

C.The Prime Minister of India

D.The Union Minister

Ans:A

96.The system of ‘Privacy Purses’in respect of former rules of Indian states before independence was abolished by the constitution through:

A.’1^(st)’Amendment Act,1951

B.’26^(th)’Amendment Act,1971

C.’38^(th)’Amendment Act,1975

D.’52^(nd)’Amendment Act,1985

Ans:B

97.The Environmental(Protection)Act was enacted in the year

A.1972

B.1984

C.1986

D.1992

Ans:C

98.The Emergency Powers of President was taken from which Constitution?
A.Constitution of South Africa

B.Constitution of Germany

C.Constitution of Australia

D.Constitution of Canada

Ans:B

99.What is the time limit to get the information concerning life and liberty of a person under RTI Act?

A.30 days

B.3 days

C.24 hours

D.48 hours

Ans:D

100.Members of the Rajya Sabha are not associated with

A.Public Account Committee

B.Committee on Public Undertakings

C.Estimate Committee

D.All the above

Ans:C

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