Old Exam Papers Dec. 2010 - Video

Derive the expression for moment of inertia of a disc
when the axis is passing through the centre. 6
lekukUrj rFkk ledks.kh; v{kksa ds izes; dk dFku nhft;sA
fMLd ds tM+Ro vk?kw.kZ dk O;atd O;qRiUu dhft;s]
tcfd v{k fMLd ds dsUnz ls gksdj xqtjrk gSA
6
2. (a) State the law of conservation of linear momentum
and explain it with the help of one example. 6
jSf[kd laosx laj{k.k ds fu;e dk dFku fyf[k;s rFkk ,d
mnkgj.k dh lgk;rk ls bls le>kb;sA 6
(b) Why the outer side of a railway track is made high
at turns ? 4
eksM+ ij jsy dh ckgjh iVjh dqN Å¡ph D;ksa mBh gqbZ gksrh
gS \ 4
3. (a) Explain the difference between isothermal and
adiabatic processes. 4
lerkih ,oa #)ks"e izØeksa ds e/; vUrj Li"V
dhft;sA 4
(b) Derive an expression for pressure of a gas on the
basis of postulates of kinetic theory of gases.
600 2 BPH
6
Papers (A) (December) 2010
(420)
LCR Js.kh ifjiFk esa vuqukn D;k gksrk gS \ rh{.k o
likV vuqukn esa vUrj Li"V dhft;sA 6
(b) Compare self induction and mutual conduction. 6
Loizsj.k ,oa vU;ksU; izsj.kksa dh rqyuk dhft;sA 6
9. (a) Define and explain the principles of nuclear fission
and fusion. 4
ukfHkdh; fo[k.Mu o lay;u dks ifjHkkf"kr dhft;s o
buds fl)kUr dks le>kb;sA 4
(b) What is the difference between photoelectric effect
and Compton effect ? How Plank's constant can be
determined with the help of Einstein's photoelectric
equation ? 6
izdk'k fo|qr izHkko o dkWEiVu izHkko esa vUrj Li"V
dhft;sA vkbalVkbZu dh izdk'k fo|qr lehdj.k dh
lgk;rk ls Iykad fLFkjkad fdl izdkj ls Kkr fd;k tk
ldrk gS \ 6
10. (a) What is a p-n junction diode ? Discuss its use as a
rectifier. 6
p-n laf/k Mk;ksM D;k gksrk gS \ bldk fn"Vdkjh ds :i
esa mi;ksx le>kb;sA 6
BPH 5 PTO