Pre University Board 2011 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, 2011
PHYSICS
( Kannada and English Versions )
Time : 3 Hours 15 Minutes ] [ Max. Marks : 90
( Kannada Version)
ii) sjsSd sfel erodrts ?Josoo 33,/de-mss.33,/s>o<3o sjdo&Sc, aSJ35de ssorif
- A
I. 3s <03 si&riSTl 0n : 10 x 1 = 10
C3 H %
1. ssd,riaoc3 ?A3 ApSrorbsS oo) rtr&iraea afc<& wdo&o.
3. oirad Eoracj s3s&rt >3f?3 lra?rfs3) ak>g rf ?
4. osjrf 4a.
5. rrott acti-essjUcS sfceofts sodoo.
6. ZjOc> Eor &Qe$3<3 &e$s$ 422 20% cd, e>d sSra'f
7. )Ck63oc3 sjdoi) sra6s36o) &sa.
8. Wrionte C&di&Srt tjOCi) 5A3TO3od?S iS.
D
9. eSsrariocjde ?
10. o3sS droso >ocjde?& ?
<*>
II. & &?ftc&$rts?<, ate>4rocjdjs so, sris?r1 eroO : 10 x 2 = 20
11. zaci jteoaakdjsoarl, &t3oc3dSo3 sSrar no&c &S30&.
12. s?3'3lraD6' SStefSSrttf oS&aS <dOSS OjjSSOiirfdjS )dc& siTJristeb, &$&.
O O Ot
13. UQ.Si.O6' aafcS&S&k, &&30&.
*S eJ ot o
14. rn:s?c), 1 nC sfdesid aiooSd <2dc& oc& esdesSrt'tf d tocb Sseuo6,
!
djsd<acrt, ssrte d: d:d sjcxd ads* soodsS 3oc>&so>e.
15. odi ?3dJso3d qrodcj atod Oelo&), aosriwa&cfc ?
16. ads 2o6j siosoop&d drS ac&dsris sodo&D.
17. ujda *>tfd<),?$ o&eo& asgd ( Dip) to6s36 sea. fce)t3 c&ad d) assg) dddrod afldrf ?
18. toodo ireoseoi) $d sdOskdod ede tfrad died ercortod tood rtcS&raeafc Eodo&O. otesrerl #s 2004 eKsSt dbd ?
19. dodrri (dirclixjddeefe ? dodrtfd id &QX>.
20. oiradjde <adc& >$d erossFfSrts s&SOA.
21. rieesJ eraareS d ?raqe&3 en323F53rte* e3sfcd <d3d dridc
22. dDodo *io$e3 ?32aS, AND rodd Szitt Iraesds wdoasO.
III. oira4crocjdl s-ortj sirl : 1x5 = 5
23. zpooeo. steud 336s36 fcraa. ads? sreori, skaqs&dddid
ciQearori e/DO&rorbd pooso s5o rir&ieft a&k, S4&A
ot n -j l cJ j
24. oix/sorFrf oiraericj0 s$63e3dra sjo> rio rirSijaed.aks sjdom
IV. & oiresjjrodcU) <adc& srtrt enoSi : 2 x 5 = 10
25. 2!03200$d<),ctos3 <adci doerte So00i0d sSS&SOid rtrS&acd.akefe sddofoO.
- *
26. rQ6odclQedJ3sjrt aicyoisSs <adOA ssdd atesslFfsaosis 530**.
27. di6sado63e' aoddesfc ? esdd oijsscraddjs srac sjjoioerrarfdjaerfri wdo&e.
V. .8 otojroddjs >dc& srts?rt eroO : 2 x 5 = 10
28. sdees? sjdsirarsoa nrfe & ?o> rtr&seo&f
29. 2233 aoortsto (coo&o6, wort)'55odderf5 ? afcasSde &>4j
asjOi.
30. P-NXopoft r-sir f&&od3 epfcofccS ackockJ ?o6o
3s s&jsd: srid eraOj : 3x5=15
31. sodo s&zlodcj | S&J&, ?iorts& djsdsj 0-4 <&>e.
ssdfi | sestooSsSsS oad >eo30, sfcoskflSjcrort $<3d siorisk cloddy
tiOC&&B>CZDO.
32. uxi> ABC sssrisk, AB = 3 &>?., BC = 4 oe. ZABC = 90 d;>3 d ds&OTfl + 9 nC &&> - 16 nC wsSert? A &;&> C s&jsdrte
-fi Zs m& <=t _D
2oftd d d:>.3*3,e3!,ri ed,io> sSd -s&& Bssot3)
ca .> Z/ -& t c-j
30C&2o0m
33. eofcsdd *bcto<i?o><) 1000 sb&i rts?cft S5dd 6,e,4 0-02 >:>?2.
CO -J5 *A / v
dorf. 3s pfodo'S'o&o 0-15 T (e$sraso) djssjrf ffso3
espodd, 900 -Sdorbrf. ec3d0 s5>e03 53dsire53
soo ( emf) *&;&, sdds&ss 3oc>&So&o. ?fod;>s?o&
?iosj) s-soecifS 60 s$rfd<), seosrod 3/33
Eoosk gty (&>ctos?o&> iie$ = 50 Q).
34. 1 g droES* - 222 3 dO ( Ci) drerfcj, 3oc&2o&cXdO.
ss>roo >Fjri<& 3-825 a?3ri<sb sprradje = 6-023 x 10 23 orl &ra60 = 3-7 x 10 10
VII. 4s Q&is&ntitiJd keek tyQrt eraOAi : 1x5 = 5
35. aS35s$crfdra <atfc> 2orarerts?rt, 2*>oc& aJjrtcJ sSakrf >#ssya *rasFs tioc&ZoBoSozi sipiraerts <asSO.
(3sfo sJjrt Iratrf <aoc> enjsSo)
36. kocto ?LiW nqesfcasWd JirajSokc tfoc&ksafcod sjpJjsertdsi S&Q&.
VIE. & oSrasroddjs t*octo art vo302j : 1x5 = 5
37. & droSo&rttf Eosted/sock utoc&eafc ( L selfinductance ) rfoc&SoSotoO :
(AC SxtofjS* esa, (/) = 50 Hz )
DO part AC&drt
|
$0* |
V ( Volts ) |
1(A) |
|
1. |
20 |
0-25 |
|
2. |
3-0 |
0-35 |
|
3. -:-1- |
4-0 --'-4-4 |
0-50 |
|
3j>. XjO. |
V (Volts ) j |
1(A) |
|
I. |
10 |
0-25 |
|
2. |
1-6 |
0-40 |
|
3. |
20 |
0-50 |
7 Code No. 33
38. tfocfc&aoAasS aoewa* Q&J- soi/3ertcS &
s&sSo-Srt* sjdo&eftd. &3i 3o3oi> djseqjs e3a4&.
3o3o> srac (L) = 0-70 e.
3o3o& ro6?j ( d) = 0-35 Sx>. <&>e.
|
&,.tfo. |
S Q <> |
gjsevci end 69 I <e. |
|
1 |
4 |
0-52 |
|
2 |
5 |
0-47 |
& aSroscJdi od: sjrt erop : l x 10 = 10
39. a) 0-024 d.no. rfdo&s 60 x 10 ~.6 ?. aeOrfi), 3dA&, orasie S&3CgCT5ftCJ. 4* CCSSSe 0-2 a&C. WCCS 3jj3O0&iei3O*tffin r1c)Sj3orori 53 ofcsfc. cb.A-Elstora &e3s&&, eroo&ste>c&3 d. araftdd
eJ > %s l a
sid crstocj )b&, ( Specific rotation) 3o5&So8iCqO.
b) sfoocto crocterts s3,er3 2oocS), sioea&crart, srts? sjosrestoireo dJo&s sjdoiosi sfcSo&O.
c) LCD isorfdeFk ? dd 2*ocfc erosSoliserisS &Q&.
40. a) &e# 100 Q , ssdd
7 O 63 * CO7 TJ
50 ririrf. ddQ, s&iSf sjclakoD 0-25 V &#ssx>3dd
prar esjci tfcsarfcarf. 0 10 3 yft aes$) sSerl sjedSF&ae ?
b) a 3dorn>o3dd sto6s36 *jss. rid rtrf&sed.afc; sSerirtrt ozooSAirfo >3&& *>.
4 cJ
c) sSerici oirerfjd? >dc& sstosD.rt? &<?&.
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.
Answer all of the following questions : 10x1 = 10
1. Write the expression for deviation produced by a thin prism,
2. What is meant by dual nature of light ?
3. For which coloured light, the angle of diffraction is least ?
4. Define plane of vibration.
5. State Gauss theorem in electrostatics.
6. Write the colour sequence for a carbon resistor of resistance 42 Q 20%.
7. Define mesh in an electrical network.
8. Give an example for incoherent scattering.
9. What are leptons ? 4
10. What is an intrinsic semiconductor ?
Answer any ten of the following questions : 10 x 2 = 20
11. With a neat diagram, give the conditions for colour dispersion without deviation.
12. Mention any two differences between Fresnel and Fraunhoffer diffractions.
13. State and explain Brewsters law.
14. Calculate the electrostatic force between two point charges of 1 nC each, when separated by a distance of 1 m in air.
15. How can the capacitance of a parallel plate capacitor be increased ?
16. State Kirchhoffs laws of electrical network.
17. Define dip at a place. At which place on earth is the dip maximum ?
18. Write the expression for the force experienced by a charged particle
moving in a magnetic field. When does this force become maximum ?
19. What is a transformer ? Give the principle of a transformer.
20. Name any two types of electron emission.
21. Distinguish between spontaneous emission and stimulated emission.
22. With circuit symbol, give the truth table for AND gate.
Answer any one of the following questions : 1x5 = 5
23. Define Normal shift. Derive an expression for the normal shift when
an object in a denser medium is viewed from a rarer medium.
24. Obtain an expression for the width of interference fringes in Youngs
double slit experiment.
IV. Answer any two of the following questions : 2x5=10
25. Obtain the expression for branch current when two resistances are connected in parallel.
26. Give the theory of T.G. and hence define reduction factor.
27. What is photoelectric effect ? Mention any Jour experimental observations in photoelectric effect.
V. Answer any two of the following questions : 2x5=10
/
28. Derive the expression for radius of nth stationary orbit of hydrogen atom.
29. What are nuclear forces ? Explain any Jour Characteristics of nuclear forces.
30. Describe with a circuit diagram, the working of a PN-junction diode as a half-wave rectifier.
Answer any three of the following questions : 3x5=15
31. A concave lens when placed in air has a focal length of 0-4 m and
3
has a refractive index of . What will be its focal length when
4
immersed in water of refractive index ?
3
32. ABC is a triangle with sides AB = 3 m, BC = 4 m, and ZABC = 90. Charges of + 9 nC and - 16 nC are placed at corners A and C respectively. Find the magnitude and direction of electric intensity at the corner B.
33. A rectangular coil of 1000 turns has an area of 0 02 m2. The coil rotates with an angular frequency of 900 rpm, in a uniform magnetic field of 0-15 T. Find the peak value of the emf and current induced.
Also, calculate the instantaneous emf induced when the plane of the coil makes an angle of 60 with the field direction. ( Resistance of the coil = 50 2 )
34. Find the activity in curie of 1 g of Radon : 222 (Ci), whose half-life is
3-825 days. Avogadro number = 6 023 x 1023.
1 curie = 37 x 1010 disintegrations per sec.
35. Describe an experiment to determine the dispersive power of the material of a prism for any two colours, assuming a small singled prism.
VII. Answer any one of the following questions :
36. Describe an experiment to determine the current sensitivity of a pointer galvanometer.
VIII. Answer any one of the following questions :
1x5 = 5
37. Calculate the L self-inductance of the coil by direct method using the following data :
Frequency of AC (/) = 50 Hz
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|
38. The following readings are obtained in a Metre Bridge experiment to
find the resistivity. Calculate the resistivity of the material of the wire
using the following data :
Length of wire, L = 0-70 m
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Diameter of wire, d = 0-35 mm | |||||||||
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Answer any one of the following questions : 1 x 10 = 10
39. a) 0 024 kg of sugar is dissolved in water to make 60 x 10'6 m3 of solution. A polarimeter tube of length 0-2 m containing this sugar solution, causes an optical rotation of 53. Calculate the specific rotation of sugar solution.
b) Obtain an expression for the equivalent capacitance of three capacitors connected in series.
c) What is meant by LCD ? Mention any one application of it.
A pointer galvanometer of resistance 100 Q has 50 divisions on its scale. A potential difference of 0-25 V is required to produce full scale deflection in the galvanometer. How do you convert it into a voltmeter of range 0 10 volts ?
Define de Broglie wavelength. Derive an expression for de Broglie wavelength in terms of mass and velocity.
b)
Mention any two importances of speed of light.
c)
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Attachment: |
| Earning: Approval pending. |
