Kerala PSC Previous Years Question Paper & Answer

Title : Junior Systems Officer - Kerala Co-operative Milk Marketing Federation Ltd
Question Code : A

Page:7


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Junior Systems Officer - Kerala Co-operative Milk Marketing Federation Ltd' And exam conducted in the year 2024. And Question paper code was '018/2024'. 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.

page: 7 out of 18
Excerpt of Question Code: 018/2024

39.

40.

41.

42.

43.

44.

45.

He-Ne laser is :

(^) Gas laser (B) Liquid laser
(C) Solid laser (D) Diode laser

An Optical fibre with refractive index of core and cladding are 1.55 and 1.50 respectively,
numerical aperture of the fibre is nearly :

(A) 0.25 (B) 0.30
(0 0.35 (D) 0.40

In Hydrogen spectra, wavelength of H, (H-beta) line in balmer series (R is Rydberg

constant) :
2 4
(A) BR (8) ‏7و‎
‎டு ೩6 3
(C) तः (0) ಡ್‌

Incident light of energy 3 eV falls on a photosensitive material of work function 2 eV,
maximum kinetic energy of electron emitted is :

(A) 3.2 J @) 3 2.10 "व
(0 १२८10 "व (0) 1.6 2.10 "व

Atom bomb is based on the principle of :

(^) Nuclear fission (B) Nuclear fusion
(C) Both fission and fusion (D) Radio activity

Lattice parameter of crystal is a # b # cand @=f=y=90° corresponds to

(^) Triclinic ) Tetragonal

(C) Hexagonal (D) Orthorhombic
Interplanar distance between (1 2 2) plane in simple cubic lattice having lattice parameter
8 = 6.3.44. :

(A) 2.14. (8) 3.24.

(0) 4.2A° (0) 6.84.

9 018/2024
[P.T.0.]

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