Pre University Board 2010 P.U.C Physics, Chemistry, Maths & Biology Physics - Question Paper
Code No. 33
Total No. of Questions : 40 ]
Total No. of Printed Pages : 16 ]
March, 2010
( Kannada and English Versions )
Time : 3 Hours 15 Minutes ] [ Max. Marks : 90
( Kannada Version )
: i) od d4rt > ,oop3 aadcjin
ii) d&dod dd 3drt>0, ,oo3 3,/dZ3,/od< wdad), odrt > Dr Xd crtbjaq,.
I. X> ft 0> ajdrt3 0b : 10 x 1 = 10
co ZJ <-(. -o
1. 3 >o Qod 3, /rtod < n Xa.
cJ _o _o <={,
2. , o, d wddrt >o 0odeo ?
_D
3. ,do d 3,e d aodod < o,d > 6 3drad , deo ?
<={, * i. CO
4. d>3 &ddo X@ aX< dXo5, defi&d , aoeXdrado doO.
5. ,dzoJd d<X adXd ddXJoo d<Xrt> doa oJddd ert d arto J d ?
_D
6. da Xd de XJ oo
<=t 6 6
7. wd f dpeoaoe&d de d dJid o ?
8. d a r d d dzrao Xeodd , oXo< nsoX UorasJXdaAd . do & o
4 y <=t
,,J d ?
_D
9. di0 dd, ,odX\} aodort> Xodrt>o d@,o)X@ p-XdS zd Xrad) Jf, Jd ?
10. AND a,d d a&J XedXd o Xa.
oS <=t
ii. x> a d)n >0 zd)a d dn jo : 10 x 2 = 20
11. od de&J d o d do d >eA,d d.ert d ,d , oo
cp <=t Jx > Cp <={,.- 7
dn n > o , o&.
4 <=t
12. d > a ,dd d dod /d)add 0ddo doJ n> O , 0&.
13. dJo adJrrt> dod dod 0ddo dJa, n>o $ft.
14. dooX wyad0 oJdd0 Oftdod 0ddo odo wdert > dod dr,d <X,
0 CO CO 7?
n Jedoo d oO dJo wde d S.I. d/ d da.Z ,oo Xa.
_D c{, _0 >><={,
15. + 4 nC ado6do adod odoa dd d wde d o 7 x 10{ EQ \s\up4( 5) }NC{ EQ \s\up4( - 1) }ed,J dod ado6J XeJOftnart, dd de
d r,d <d o X, sad.
ot U
16. rod , yaoJ X.eJ,d0 0,d wde d de d r,d <d/dart rtod dJo
6 oOk _> CO Q _D
XadartoJ d ?
S -0
17. d d <do ado_wJa@oeo d,ed } aodrt > o d oO.
18. odra lcr , d dood <d 0 ados d;dad d) wdd den dearto J d <aouodo J,d do<X JeOft.
-0 ot
19. deza J&rrf deJ 0odde ? dd odo wXddo $ft.
20. dPiaa a ef J d on dd X@ eXdrad o d d oO.
21. wya ae0/A aX yaraoJ d ? ad Oft.
_D
22. d ,drt>o 0odeo ? d)rt> /d)doo odot $ft.
III. X>Ad)rt>0 /d)d oo 4,4 3Oft : 1 x 5 = 5
23. &e do,ddoR oo j5*_d/wdo 0YOftn do,d ad/Fra ,3j0r
24. j,,d* aodod o doO. do o,aeddra Xe 0 43 drort
ZJ <i6 <=t 4 3 co
03 6d ra do3o d e d 6d ran >o 4 d ,jd t4j,d/d od 0oo , ft.
iv. x> a d)n>0 /d) d 0-0 4n 30ft : 2 x 5 = 10
25. la.ool na.<,eaoe&d* ftro o3 d o ad Oft. Oo d
6 6 ci cp <={,
4 ddF}od o, dwwft.
at 6 6
26. LCR , d dood < do3 ao,3,d X, 4,d X,oo
ZJ ' -o T?->cpoOk<=t
ftXodo n 3e3 n > o a4, ft.
_o <={, _o
27. 4 d d/raoa de3 , d o rft.
v. x> a dn>0 /d) d 0-0 4n 30ft : 2 x 5 = 10
28. 4 d d/rao zd) d : a odran > o ad Oft.
29. djo,aX aodod o doo. adra d ,art , oofto3 n = N{ eq \s\do4( 0) }e{EQ \s\up4( - xt) }oo ft.
30. P-d/dD doSo N-d/dD dd3drt> dod dd d..,
_D >>{,
VI. X> d)rt>y /d)ddd odo SD& : 3 x 5 = 15
31. 0-3 ax. drrt > Dr SoQdd da0 odo n> d. do odo dnaod 005 aoe. ddadodoS - add dnaod
cp
015 aoe. ddadodoS rn,drtoSd. sndd rto>, ,. &
-o v1 a) 6 cp <=t
dodoa<D.
32. X>A S,d0 SeDdoS mddrt>o {ea,cAd. A doSb B &odrt>
y CO * t _0
doa d DdoyD dd dS d@ d/a.
|
9 |if / \ 3 |if |
 |
33. 6 X 10{ EQ \S\UP4( 26) }aoe.{ aJS\UP4( - 3) }0 yd ,od;S 2o>
d dd 0 5 A ado. 3* dd d . 10 aoe. d d dood den d 0 odo
co i> ZJ s co co
SQod doSodo SbQrt 0,< odo 0 5s*n eyd y< dd/radOR d@ s3.
Soo dCL ed aerar = 2 x 10{ EQ \s\up4( - 6) }aoe.
adorode = 16 x 10{ EQ \S\UP4( - 19) }C
34. 1672 eV yoF<do oQdod odo dedd doe 15 x 10{ EQ \s\up4( 15) }Hz wdodod a<ortd addo d@
sd.
h = 6-625 x 10{ EQ \s\up4( - 34) }J s
VII. X> A d)rt>0, z)OTd& oo d, Ob : 1 x 5 = 5
35. &e do,dd , ortdo dddo d< & dd ood dodoado &e
<={, cp co cp
do,dd d ,a d d odd 0r a FO,d d,>ert d o ad Ob.
(do,dd 0do doonn > d > o r { eq \s\do4(1) idoo r { eq
\s\do4(2) }0oo
36. odo dd d ddood d Xd ( Forward bias ) rtora<d\rad o n dod>o,d doo dOod d ?d doo,d d;fd } dcd d o, d d ood
v1 -> ZJ * <={,
djn d o d
vm. x> a d)n>0, /d)oo dn Ob : 1 x 5 = 5
37. X> n Xdod 3o n > o d Xdod d Xd d ,a a ded d o XodoaoO.
ot
d Xd = 0-26 aoe.
CO
d Xd d, = 063 x 10{ EQ \S\UP4( - 3) }aoe.
|
xtf2&Rrt> ,oZ |
zj< tfoB&O d>ri deri * cn * ( ft ) |
a ( oe. ) |
|
1 |
1 |
0-42 |
|
2 |
2 |
0-29 |
38. X.dod d33ort>o deA& odo ado.3 Xed wo30X deddo
ej _o t t> * =t,
X@ a. ado.3 Xe dprarrt>d dood <d 0n 3e< d = 064 aoe.
O co co co
|
,oZ |
drij.e*' gfie&i, {fieari deri 6 6 * ( ft ) |
gfi>e< a ( oe. ) |
|
1 |
4 |
0-46 |
|
2 |
6 |
0-50 |
|
3 |
8 |
0-52 |
|
4 |
10 |
0-53 |
e)rt - D
IX. X> Ad)rt>0, /d)d3dd d, 30 : 1 X 10 = 10
39. a) oon ae>0 rtoQ dertd, 6000 { EQ \o(\s\up8( o),A) }3 - on dd adod Xo d eA& 6 ao.aoe. rt<adod d63eXd ra d ,oo d dooAd . &e>o noart >o do3o d d d doa o3 d d o
eJ ot -o ot
dd 0 ddd rX@ d63eXd ra d o rt< 4 ao.aoe. dod o3 d/d <o 3o, eyd > 3 3 don ddd o X, a. 4
ot U
b) ad6ddad dd daod od &oda <,oidribd ad63
ed,3 dd nd, d,deddd rfb adb. 4
c) rdd ) d,dra , ddcd.X n 3eooo, d o,
, oXe3dd.drt> d ad 0b.
2
<A t
40. a) X>n Xdod dodd<), adddd I{ EQ \s\do4( 2) }yL dodoaoo. 4
b) de,d*rt> d sdoo, ddrt> d. $b.
4
c) ydo3 X\e3;0 ads3s03 dddd ded drdd <d
,%/ddrad o d do, , oXe3dd\d n> d ad 0b.
2
( English Version )
Note : i) Numerical problems solved without writing the relevant formulae carry no marks.
ii) Answers without relevant diagram / figure / circuit wherever necessary will not carry any marks.
PART - A
I. Answer all of the following questions : 10 x 1 = 10
1. Give the expression for deviation produced by a thin prism.
2. What are the coherent sources ?
3. Name the ray that does not obey Snells law of refraction.
4. Write the equation used by Michelson to calculate the speed of light.
5. How does the capacitance of parallel plate capacitor vary with
separation between plates of it ?
6. Define resistivity of a conductor.
7. What is the value of resistance of an ideal Voltmeter ?
8. The packing fraction of nucleus of an element is negative. What does it indicate ?
9. According to Pauli, which particle is emitted in p-decay to account for violations of conservation laws ?
10. Give the truth table for AND gate.
PART - B
II. Answer any ten of the following questions : 10 x 2 = 20
11. Draw a labelled diagram of the experimental set-up used to obtain pure spectrum.
12. Mention any two theories about nature of light.
13. Give any two differences between Fresnel and Fraunhofer diffraction.
14. Write expression for force between two point charges separated by a distance in free space and define S.I. unit of charge.
15. Calculate the force acting on a point charge +4 nC placed in an
electric field of intensity { EMBED Equation.3 }.
16. When does the force acting on a moving charge in an external
magnetic field becomes maximum and minimum ?
17. State Faradays laws of Electromagnetic Induction.
LCR series circuit diagrammatically.
19. What is the line emission spectrum ? Give one of its sources.
20. Obtain an expression for de Broglie wavelength of a photon.
21. The sky appears blue. Explain why.
22. What are liquid crystals ? Give one of its applications.
III. Answer any one of the following questions : 1 x 5 = 5
23. Derive Lens Makers formula for convex lens placed in an optical medium.
24. State Brewsters law. Show that the reflected and refracted rays are normal to each other at polarising angle of incidence.
IV. Answer any two of the following questions : 2 x 5 = 10
25. Give the theory of Tangent galvanometer and hence define reduction
factor.
26. Derive an expression for impedance and current in LCR series circuit
using phasor diagram.
27. Discuss the spectral series of hydrogen atom.
V. Answer any two of the following questions : 2 x 5 = 10
28. Explain any five characteristics of atomic nucleus.
29. State decay law. Show that { EMBED Equation.3 } for a radioactive
element.
30. Distinguish between P-type and N-type semiconductors.
VI. Answer any three of the following questions : 3 x 5 = 15
31. Find the real position of an air bubble in a glass cube of side 0-3 m if
the bubble appears to be at a distance of 0-05 m from one face and at
0-15 m from the opposite face.
32. Calculate the effective capacitance between the points A and B shown
in figure :
|
9 |if / \ 3 |if |
 |
33. The current flowing through a conductor having electron density {
EMBED Equation.3 } is 5 A. Calculate the time taken by an electron
to drift from one end to other end of 10 m length of it.
Area of cross-section of the wire = { EMBED Equation.3 }
Charge of electron = { EMBED Equation.3 }.
34. A photon of frequency { EMBED Equation.3 } is incident on a metal
surface of work function { EMBED Equation.3 }. Calculate the
stopping potential.
h = 6-625 x { EMBED Equation.3 } J s
VII. Answer any one of the following questions : 1 x 5 = 5
35. Describe an experiment to determine refractive index of material of given convex lens by finding its focal length by shift method ( given the radii of curvatures as { EMBED Equation.3 } and { EMBED Equation.3 } ).
36. Describe an experiment to draw forward bias characteristic of a semiconductor diode and to obtain forward resistance of the diode from it.
VIII. Answer any one of the following questions : 1 x 5 = 5
37. Determine the resistivity of the material of the given wire using the following data :
Length of the wire = 0-26 m
|
Diameter of the wire = 0-63 x { EMBED Equation.3 } m |
 |
|
1 |
1 |
0-42 |
|
2 |
2 |
0-29 |
38. Calculate the internal resistance of a cell using the given data :
|
Balancing length for cell in open circuit = 0-64 m ( when R = 0 ) | |||||||||||||||
|
IX. Answer any one of the following questions : 1 x 10 = 10
39. a) Light of wavelength 6000 A is used to obtain interference fringe of width 6 mm in a Youngs double slit experiment. Calculate the wavelength of light required to obtain fringe of width 4 mm if the distance between the screen and slits is reduced to half of its initial value. 4
b) Derive an expression for electric intensity near the surface of a
charged spherical conductor using Gauss theorem.
4
c) Write an expression for resolving power of a Microscope and
explain the terms.
2
40. a) Find the current { EMBED Equation.3 } in the circuit shown
4
|
below : |
 |
b) Give any four application of lasers.
4
c) Write an expression for force acting on a current carrying conductor placed in an external magnetic field and explain the
2
terms.
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Attachment: |
| Earning: Approval pending. |
