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S. S. JAIN SUBODH P.G.(AUTONOMOUS) COLLEGE, JAIPUR
I CIA (B.Sc. Semester II) Test, March 2015
Physics
Duration: 2 Hours
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Instructions to the Candidates/ vko’;d funs’Z k %&
Note:- Each paper consists of one major question with internal choice. Students are required to answer any one
question from each paper.
lqpuk& izR;sd iz’ui= esa ,d izeq[k iz’u iwNs tk;sxAsa ijh{kkfFkZ;ksa dks dksbZ ,d iz’u djuk vfuok;Z gSA
Paper-I
MAX.MARKS-10
Mechanics-II
(1)
Describe the principle of a Rocket. Establish the following relation for final velocity v=v0+vrlogeM0/M,
where the term have usual meaning.
jkWdsV dk fl)kUr le>krs gq, mlds vfUre osx ds fy, fuEukfdar lEcUËk velocity v=v0+vrlogeM0/M LFkkfir dhft, inks a
ds lkekU; izpfyr vFkZ gSA
OR
What is Centre of Mass Frame of reference? Analyze the head on elastic collision of two particles in
Centre of mass frame.
nzO;eku dsUnz funsZ’k ra= D;k gSA nks d.kksa dh lEeq[k izR;kLFk VDdj dh nzO;eku dsUn funs’Z k ra= esa foospuk djksA
Paper-II
MAX.MARKS-10
Electromagnetism-II
(2) Prove that the spin gyromagnetic ratio in an atom is double the orbital gyromagnetic ratio.
fl) dhft, fd fdlh ijek.kq esa pØ.k tkbjkseSxusfVd fu"ifÙk dk eku dBh; tkbjkseSxusfVd fu"ifÙk ds eku dk nqxuk gksrk
gSA
OR
Establish a relataion between magnetic susceptibility and magnetic permeability for a magnetic
material.
fdlh pqEcdh; inkFkZ dh pqEcdh; izo`fÙk rFkk pqEcdh; ikjxE;rk ds e/; laca/k izkIr dhft,A
Paper-III
MAX.MARKS-10
Oscillations & Waves-II
(3) Derive the equation of motion & dispersion relation for one dimensional monotomic lattice.
,d foHkh; ,dy ijek.kq v.kqtky ds fy, xfr dk lehdj.k ,oa ifj{ksi.k lEcU/k dks O;qRiUu dhft,A
OR
Explain the lattice vibrations for one dimensional diatomic lattice & derive the equation of dispersion
relation for this lattice.
,d foHkh; f) ijek.kq tkyd ds dEiUuksa dh O;k[;k dhft, rFkk nl tkyd ds fy, ifj{ksi.k lEcU/k O;qRiUu dhft,A