Kerala PSC Previous Years Question Paper & Answer
Page:13
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'HSA Physical Science (Malayalam Medium) NCA' And exam conducted in the year 2019. And Question paper code was '055/2019/OL'. 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.
A:-Law of conservation of linear momentum
B:-Law of conservation of angular momentum
C:-Law of conservation of energy
D:-All of these
Correct Answer:- Option-A
Question39:-A particle of mass m undergoing simple harmonic motion of displacement x and force constant k,
the differential equation is
A: x = (k/m)x
dt’
B:- @x = (-k/m) x
dt’
0030 + 1] dx =(-k/m) x
dt? dt
D: عكل +n dx (-k/m)x=0
de dt
Correct Answer:- Option-B
Question40:-As the length of simple pendulum increases, the period of oscillation
A:-remains constant
B:-decreases
C:-increases
D:-none of these
Correct Answer:- Option-B
Question41:-The amplitude of a driven oscillator becomes maximum at a particular frequency known as
A:-Driven frequency