Kerala PSC Previous Years Question Paper & Answer
Page:19
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Junior Research Officer (SR for ST)' And exam conducted in the year 2023. And Question paper code was '137/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
6 fora 2) Br] 40H 7
D:-H++Br-+H,0
Correct Answer:- Option-C
Question80:-When oxalic acid is oxidised by acidified potassium permanganate, the
compound produced during the reaction acts as auto-catalyst is
Ai-KMn0,
B:-co,
(:- 250४
D:-mnso,
Correct Answer:- Option-D
Question81:-We have #v=av , where H is Hamiltonian operator and a is eigen value,
the ‘a’ will have dimension of
A:-Energy
B:-Momentum
C:-Angular momentum
D:-Force
Correct Answer:- Option-A
Question82:-What will be the zero point energy of particle confirned in one
dimensional box of length '2a'?
മ
"छण
._ 2
8: 187103
ம
6 321102
تيم
മര്
Correct Answer:- Option-C
Question83:-According to Planck's theory the average energy per oscillator is
Correct Answer:- Option-D
Question84:-lf the momentum of a particle is increased to four times, then the de-
brogle wavelength will become
A:-Two times
B:-Half times
C:-One fourth times
D:-four times