Page:3

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'HSST PHYSICS SR FOR SC/ST KHSE' And exam conducted in the year 2016. And Question paper code was '073/2016/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.

page: 3 out of 11

Question19:-Orthogonal property of Legender’s polynomial is given by

nt_-1~1"Pm{x}Pn{x}=0" m=n

int_-1~1"Pm({x}Pn{x}=1" mzn

0-1 1710010000 ന

D: - 01 Pm{)PR{x)=0"m=n

Correct Answer:- Option-A

Question20:-Find the value of ** *|~(5/2)" i.e gamma (5/2)

A:-"(3sqri(pi/(4)

8;-(50ಗೆ/(01))/(2)7

(ங்)

05:-ട്രല))/(ദ*

Correct Answer:- Option-A

Question21:-A particle of mass m is bound by a linear potential U=kr. For what energy will the orbit be a circle of radius r

about the origin

கோ?

B:-3kr

೧

5:-(ന/(2)*

Correct Answer:- Option-A

Question22:-Two circular discs have the same mass m and same thickness ட ம one has uniform density less than that of

disc two. Which of the following is comect.

A:-Disc two has larger moment of inertia

B:-Disc one has larger moment of inertia

C:-Both have same moment of inertia

D:-Can not be predicted from given data.

Correct Answer:- Option-B

Question23:-Consider motion of a particle of mass m under the influence of a force F=-kr, where k is a positive constant and

r is the position vector of the particle. Now the orbit will be

A:-Ellipse

B:-Along a line

6:

ircle

D:-Parabola

Correct Answer:- Option-A

Question24:-A violin string 0.5m long has a fundamental frequency 200Hz. At what speed does a transverse pulse travel on

this string?

A:-100mys

8:-400ಗ/5

C:-200m/s

D:-300m/s

Correct Answer:- Option-C

Question25:-Consider the longitudinal vibration of a linear triatomic molecule with two atoms of mass m each symmetrically

situated on either sides of an atom of mass M. Now which of the following is a normal mode frequency of the system,if we

use a spring model

கங்கு

8: வங்

C:-0

'(۳٦م)50۲۲“-:50

Correct Answer:- Option-C

Question26:-Number of generalized coordinates required to describe the motion of a particle of mass m constrained to

move on the surface of a sphere of radius R are

ಹಿ

B:-1

C:-0

D:-2

Correct Answer:- Option-D

Question27:-The Hamiltonian of a particle in a central potential V(r} is

((7)2((/)20م) يم

(۷)۳۲+ '(2((/)27)م)“-:ظ5

യമ) வற

மாலே സ്”

Similar Question Papers