Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Non Vocational Teacher Physics (Junior & Senior)' And exam conducted in the year 2023. And Question paper code was '084/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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The interplanar spacing between (221) planes of copper with lattice constant 3.62A° is :
(A) 1.2nm (B) 1.2 A®
(0 720೫ 0) 7280
The magnetic induction of an iron rod which is subjected to a magnetic field of 2000 Am 1
whose susceptibility is 599 will be :
(A) 0.75 ण! (8) 2.05T
(C) 0.91T (D) 1.51T
Which is the correct statement with regard to the Einstein-Debye phonon model?
(^) Total specific heat depend on electronic specific heat proportional to square of
temperature and Vibrational specific heat proportional to cube of temperature
(B) Total specific heat depend on electronic specific heat proportional to cube
temperature and Vibrational specific heat proportional to square of temperature
(C) Total specific heat depend on electronic specific heat and Vibrational specific heat
where both are proportional to cube of temperature
(D) Total specific heat depend on electronic specific heat proportional to temperature
and Vibrational specific heat proportional to cube of temperature
The polarization of an electric field of 108 Vm-! with a medium having dielectric constant of 2
is:
(A) 8.85 < 10+ coulomb m2 (B) 8.85 x 10° coulomb m?
(C) 2.65 x 10-4 coulomb m2 (D) 2.65 x 10-6 coulomb m?
The critical field of a superconductor at 2K having critical temperature of 8K at zero
magnetic field and critical field of 0.04 T at 0 Kis:
(A) ھ٤ ൫ .0375T
(© .0625T (D) .0525T
The incorrect statement regarding first Brillouin zone is :
(^) It is the first Wigner-Seitz cell about a reciprocal lattice point in reciprocal space
)8( The locus of points in reciprocal space that have no Bragg planes between them
and the origin
(C) is the region of reciprocal space in which a point has one Bragg Plane between it
and the origin
(0) is the region of that is a subset of the region enclosed by the 2.4 Bragg plane in all
directions
The temperature above which an anti-ferromagnetic material becomes paramagnetic is the :
(ಗ) Critical temperature (B) Curie temperature
(C) Weiss temperature (D) Neel Temperature
13 084/2023
[7.7.0.]