Gujcet 2008 Physics & Chemistry

This booklet contains 24 pages ..DO NOT open this Test Booklet until you are asked to do so.

Test Booklet Code IA IPCE-2008

Test Booklet No. 886725

Important Instructions :-1. The PHYSICS & CHEMISTRYtest is consist of 80 questions. Each question carries 1 mark.

For each correct response the candidate will get 1 mark. For each incorrect response, % markwill be deducted. The maximum marks are 80.

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• responses.

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PHYSICS

1. A circle of radius 'a' has charge density given by A = AO cos2 8 on itsVn1at will be the total charge on the circle?

Te a AO

(C) 2 11: a (D) None of these

2. Electrical force between two point charges is 200 N. If we increase 10% chargeon one of the charges and decrease 10% charge on the other, then electricalforce between them for the same distance becomes

(A) 200 (B) 99 N

(D) 100 N

3. If 20 J of work ha:) to be done to move an electric charge of 4 C from a point,where poic is 10 volt to another point, where potential is V volt, find the

v.

5 volt

(C) 2 volt

(B) 15 volt

(D) 70 volt

/ I

4. Eight charges, each of magnitude q are placed at the vertices a ctibe placedin vacuum. Electric potential at the centre of the cube due to this system ofcharges is .....

(£0 is permittivity of vacuum and a is length of each side of the cub~)

(A) Zero (B)-J3q

(C)2q 4q

-J3n£o a

(Space for Rough Work)

J~~r'J\/~~J

BOOKLET Al02-A

[3] :P.T. 0:

(C) 198 N

5. 64 small drops of water having same charge and same radius are combined toform one big drop, The ratio of capacitance of big drop to small drop is

(B) 1: 42:1 (I))1:2

6, Equivalent capacitance between X and Y point in the given figure is

2 It F

.J- ,Ll l~I'.,-",.;,

6 •

(A) 3 !l F

(B) 1 !l F

(C)

I ',I . " ..~__,'_,,_ .. ~ ". __' ••_._'~ _-"~----f--- '1'---' 'f

~.- L--t' , )X _,,_fL, ~, ,

L\

~···i

)/!

7. Cross-sectional area of a Copper wire is equal to area of a square of length2 mm. If this copper wire draws 8 A electric current, then find the drift velocity

of free umber density of electron in Copper wire is 8 x 1028 m-3.

(C) 3.12 X 10-3 ms-1

(B) 1.56 x 10-2 ms-1

(I)) 3.12 x 10-2 ms-1


BOOKLET Al02-A

[4]

(A) 4:1

8. The internal resistance of a cell of emf 4 V is 0.1 Q. It is connected to aresistance of 3.9 Q. The voltage across the cell will be

(A) 0.1 V (B) 3.8 V

(D) 2 V

9. The ratio of cross-sectional areas of two conducting wires made up of samematerial and having same length is 1: 2. What will be the ratio of heatproduced per second in the wires, when same current is flowing in them ?

(A)r--

1:~2 (B) 1: 1

(C) 1: 4

10. Two electric bulbs are connected one by one across potential.difference V At

that time l-:-J Now, if potential

difference is applied across combination of these what \vill betotal

f

\

T-

t--

11. First order derivation of thermo emf produced in thermcH~nuple with respectto temperature gives ....,.

(A) Neutral temperature

(C) Inversion temperature

Thermo electric power

CD) Thomson coefficientr I I L_~

r ,p1/' ,,",';'. r':,I ' {".

BOOKLET A102-A


[5] RT.O.

(C) 3.9 V

----------------~-"

\vCD) 12 Q

(A) 6 Q

CC) 24 Q

The deflection in Moving-coil Galvanometer falls from 50 divisions to 10 divisions,when a shunt of 12 Q is connected with it. The resistance of Galvanometer coil is

, (\, pv.,,<\+ V\

, ' -.t,•• ").••• -I': ',--J

12.

ILCD) 4n4n

l1'- /

A current flows in a conducting wire of length L. If we bend it in a circularform, its magnetic dipole mqment would be .(L ''\

r2 \ r2L2 r

(A) ~ (B) _\4n / 4n

. (i,

13.

14. At a given place on the Earth, the angle between the Magnetic meridian andthe Geographic meridian is called .

(A) Magnetic latitude (B) Magnetic dip

CC) Magnetic longitude declination

15. In an A.C. circuit, a resistance of R ohm is connected in series with an inductorof self inductance L. If phase angle between voltage and current be 45°, the

value of inductive reactance (XL) will be equal to .

(A)R4

R(B) 2

R(D) 8

(Space for Rough Work)CL_ Ici'<.. IV \ - .•

BOOKLETA102-A

[6]

\V

(B) 48 Ω

IL^2/4π

16. The north pole of a magnet is falling on a metallic ring as shown in the figure.The direction of induced current, if looked from upside in the ring will be

CA) Anticlock-wise,

lB) Clock-wise.

CC) Clock-wise or anticlock-wise depending on

CD) No induced current.

17. At time t = 0 second, voltage of an A.C. Generator starts from OV and becomes

2V at time t = _1_ second. The voltage keeps on increasing up to 100 'Y,atlerlOOn

which it starts to decrease. Find the frequency of the Generator.

CA) 100 Hz (B) 1 Hz

CC) 2 Hz CD) 5 Hz

18. X and Y; two metallic coils are arranged in such a way that, when steady changein current flowing in X coil is 4 A, change in magnetic flux associated withcoil Y is 0.4 Wh. Mutual inductance of the Sy;:::telrlof coils is H.

CA) 0.8

CC) 0.2

BOOKLET A102-A

(B) 0.1

CD) 5


[7] :P.'f.O.

~ \{/'\>" (\- --~\

./

(B) - n a2r

(D) - n ex r

S

r

E :)

Qi'( h) g:;:N

19. A conducting ring of radius r is placed perpendicularly inside a time varying

magnetic field given by B = Bo + at, as shown in the figure. Bo and ex are

positive constants. Find emf produced in the ring.

1'here are 2.0 x 1024 molecular dipoles in a paramagnetic salt. Each has dipole

moment 1.5 x 10-23 Am2. Find maximum (saturation) magnetization in thespeCImen.

·1'······.·······'···········.·."

r, .•••.,I.

,-)

(A) 20 Am'"

(C) 200 iD) 50 Am2

At what angle ofcomplete Iv

the light reflected from a glass slab will becomeThe angle of refraction at that incident angle is 33.6°.

900

(B) 46.4:°

(D) 0°


BOOKLET Al02-A

[8]

(A) -πα^2r^2

(C) -παr^2

(A) 56.4

1.:33

A ray of light travelling in water is incident on a glass plate immersed in it.When the angle of incidence is 510, the reflected ray is totally plane polarized,then find out the refractive index of Glass.

"ef)'active index of Water is 1.3 and tan 510 = 1.235J(B) 1.305

(D) 1.805

22.

Fraunhoffer diffraction by a single slit, a position where first order minimumis formed by the \vavelength of 9000 A, first order maximum is formed due to

an unknown wavelength A' is .... (' ,/ .

(A)6000 A (B) 4000 A

..,:.-

~/I

/ \ if( \(C)

8000 A (D) 2000 A",~

24. In Young's experimenL the distance between two slits is halved and thedistance betv,~et·:n. screen and slit is made three times. Then width of the

fringe cL I -, dbecomes 6 times.

lC) becomes half.

(B) becomes 4 times.

(D) remains the same. r·::;, '.

[' (b

25. Ratio of intensities of two waves is given by 9: 1. Then ratio of their amplitudesIS .....

3: 1

tC) 9: 1

(B) 2: 1

CD) 1: 9

Which of the following undergoes largest diffraction ?

(A) y-r3:Y:3 (B) Ultra-violet light

InLra-red light (D) Radio waves

,>--

i'--.--'r~

i//

~-~".~~.<-~~~~-----------------------------------------------------(Space for Rough Work)

BOOKLET Al02-A

[9] R'f.O.

(A) 1.605

27. The diameter of the lens of a telescope is 0.61 m. Wave-length of light is

5000 A . The resolution power of the telescope is -

(A) 2 x 106

(C) 2 X 104

(B) 106

(D) 2 x 102

28. The photoelectric threshold wavelength for Potassium having work functionof 2 eV; is .

(Take h = 6.6 X 10-34 J s ; 1 eV = 1.6 x 10-19 J; C = 3 X 108 ms-1)

(A) 1240 nm

(C) 1860 nm

(B) 310.7 nm

29. A Photon of energy 8 eV is incident on a metal surface of threshold frequency

1.6 x 1015 Hz. The maximum Kinetic energy of photo electrons emittedIS .

(Take h = 6.6 X 10-34 J s ; 1 eV = 1.6 x 10-19 J )

(A) 4.2 eV (B) 2.8 eV

ee) 1.4 e'V (D) 0.8 eV

30. What will be the angular momentum in fourth orbit, if L is the angularmomentum of the electron in the second orbit of Hydrogen atom?

~L L(A)

(B) -3

2

3

eCi 2 L(D) --L

2


BOOKLETA102-A

[10]

31. An ex particle and a deuteron are moving with velocities v and 2v respectivelyWhat will be the ratio of their de-Broglie wavelengths?

> \ CJ

\\

(D) 12: 1

(B) 2: 11: 12( -\ '\\fi)

. v'y32. Ultraviolet light by wavelength 200 nm is in~ident on polished surface

of Fe (Iron). Work function of the surface is 4.71 eV. What will be its stoppingpotential ?

V

(C) 0.5 V

(B) 2.5 V

n None of these ./\ L->1;,/

/'33. The number of Photons of wavelength 660 nm emitted per second by an electric '"r]/\

bulb of 60 \V is .....

(Take 7, = x

.J ,-\-20- "-

(C) 3 x 1020 (D) 1.5 x 1020

34. Complete the following nuclear reaction :

B 9 + H 4 C12 !4 e ' 2 e ~ 6 + .

(A) p iProton)

r .;:." eutron)

(B) e (Electron)

(D) v (Neutrino)

v\\~)


BOOKLET A102-A

[11] RT.O.

(B) 50.98 km

(D) 38.98 km

35. A T.V tower has a height of 75 m. What is the maximum distance up to whichthis T.V transmission can be received?

(Radius of the Earth = 6.4 x 106m)

(A) 40.98 km

3°36. Which one of the entries given in the truth table is true for the following logic

circuit?

Entry I Input Input I OutputNo .. A B Y..1.! : n ! 1---+--~~-~._~..~-

~

o 11 0

B

A-q_). I

37. The frequency of audio analog signals lies in the range

(A) 1C ~\

·1·=········.···'····.·.····•• ··&.

r1:1.

'"·i

(A) 20 Hz to 20 MHz

(C) 20 kHz 20

(B) 20 Hz to 20 kHz

(D) 12 Hz to 20 MHz

38. Advantages of optical fibre communications over two wire transmission lineor co-axial cable transmission are

(A) high band width, transmission loss.

(B) low lividth, high transmission loss.

lC) low band width, low transmission loss.

(D) high band width, high transmission loss.


BOOKLET A102-A

[12]

(C) 30.98 km

(B) 2(D) 4

39. A pure Ge specimen is doped with Al. The number density of acceptor atomsis approximately 1021 m-3. If density of electron hole pair in an intrinsic

semi-conductor is approximately 1019m-3, the number density of electrons inthe specimen is

(B) 1015m-3

(D) 102m-3

40. An AND gate is followed by a NOT gate in series. With two inputs A & B, theBoolean expression for the output Y will be

(A) A· B

BOOKLET A102-A

(B) A + B

\D) A·B


[13]

I;, ......•..• j1

CHEMISTRY

41. The presence of unpaired electron in Phosphorus atom is explained by which, principle?

(A) Pauli exclusion principle· (B) Auf-bau principle

(C) Heisenberg's principle (D) Hund's rule

42. If a cricket ball having mass of 200 gms is thrown with a speed of

3 x 103 em/see., then calculate the wavelength related to it.

1.104 x 10-32 em. (B) 2.2 x 10-27 em.

(e) 1.104 x 10-33 em. '>.. (D) 1.104 x 10-27 em.

43. Which type of stacking pattern is found in Sodium chloride'" crystal lattice ?

(A) a - a - a a ..· b -.a - b

(C) a-b-c-a-b-c (D) None of these

44. Which type of silicate compound, the Beryl is ?

(A) Chain silicate (B) Cyclicsilicate

CC) Planar silicate (D) Di-silicate

45. Find out the osmotic pressure of 0.25 M aqueous solution of Urea at 27°C.

(R = 0.082 Lit. atm./mol. K., R = 1.987 Cal.)

CA) 0.615 atm 15 atm

(C) 61.5 atm CD) 0.0615 atm


BOOKLET Al02-A

[14]

46. Which one is true from the following for Isobaric process?

-

(A) L1 q = 0

(C) L1 E = 0 (D) ~ H = 0

47. Which is included in thermodynamic equilibrium from the following?

(A) Chemical equilibrium. (B) Pressure equilibrium. ii'

(C) Thermo equilibrium. (D) All of these. ,')

48. What will be the proportion of moles of metal (Cu : Ni: Ag) at Cathode \;'1))according to the Faraday?

(A) 2,21 (B) 1: 2 : 1

C)

1:1:2 (D) 1: 2 : 2

49. Which Nernst equation is true to find out the potential of non-standard electrochemical cell from the following?

'/

(B)

'n, _ EO 0.0592 r 2+] r _]2~cell - cell - n 10glOLFe LI

E Eo 0.592 I rF 2+] rI~]2cell = cell --- oglOl e ln

\

\

'{1

\'(, ~\

'f\ \ "

E ",0 0.0592 I[Fe2+ ] [r- t

'cell = .c..,cell- nF OglO_ [Fe][I2J

(D)

Ecell = E:ell0.0592 10glO [Fe2+][r-]n

-(Space for Rough Work)

BOOKLETA102-A

[15] ~T.O.

50. The order of a reaction for an esterification process is ....

(A) First (B) Zero

(D) Second order

51. Which equation is true to calculate the energy of~ctivation, ifthe rate of reactionis doubled by increasing temperature from T1 K to T2 K.

\I·~····.·' ..···...

,..i:'

.", ..

E [1 1](A) loglO ~~ = 2.30; R T2 - Tl

K[ _ Ea [~_~]

(B) loglO K - 2.303 R Tl T22

" f1 1]

.lCla I __log 10 2 := 2.303' R lTl T2

1 Ea [~_~]

(D) logl0"2 = 2.303 T2 Tl

I~

\

/

52. When plotted a graph of concentration 4 Time for zero order reaction, thenthe value of Slope is -

(A) - 2.303 X K (B)K---

2.303

(C)Ea

2.303 R


BOOKLET A102-A

[16]

53. type of phenomenon is seen when coloured dye is removed from solutionby charcoal?

,L~,dsorption

i\bsorption

l,bsorption and Adsorption both.None of these.

- --

54. type of graph gives straight line in Langmuir adsorption isotherm?

m 1 x1~ - (B)- ~-

xp mp

x

(D)x1

loglO - ~ PloglO - ~mmp

55, 'Which element is not of a p block from thefollmvi::

(A) Ga

(C) Po

(Ei

2

56. How many atoms are packed dIfferently in cyclicmonoclinic Sulphur?

(A) 6

(C) 10

dn allotrope of

57. How can a

(A)

(B)

iodine be bonded in octahedral meta per iodic acid?

'0' and four OH group.

two '0' and five 'OR' group.

V1ith one '0' and five 'OR' group.

With two '0' and three 'OH' group.


BOOKLET Al02-A

[17] ~T.O.

58. Find out the Normality of a solution, when 9.8 gms. of H2S04 is dissolved in500 rnl

0.4 (B) 0.2

(C)

0.8 (D) 4..0/;

'\\ I\

59. On which factors, the stability of an oxidation state in Lanthenide elementsdepends?

(A) Internal energy.

(B) Enthalpy.

(C) Electronic configuration.

Combined effect of hydration energy and ionization energy.

60. Potassium dichromate is used -

(A) as a reducing agent.

(B) in electroplating.

(C) as an insecticide.

lD) It oxidises ferrous ions into ferric ions in acidic media as an oxidizingagent.

61. How many electrons are present in 3d orbital ofcomplex.

CA) 10 electrons

(C) 6 electrons

BOOKLET A102-A

CD) 7 electrons


[18]

62. Which ligand is useful for removal of the toxic effect of lead metal in body inchelate therapy treatment.

(A) CH3COO-

(B) COOICOO -

63. How many numbers of neutrons will be present in newly formed compound

when two (J particles and one ~ particle are emitted from 244M ?94

•

145le) 148

(B) 146(D) 150

64. Find out the half life period of 14C whose decay constant is6

2.25 X 10-4 year-I,

(A) 3000 years(C) 5730 years

years(D) 5780 years

65. How many numbers ofpossible stereo-isomers are there of 2, 3, 4 tri chloro pentanoicacid?

(A) 12

BOOKLET Al02-A

(B) 8(D) 16


[19] :P.T.O.

H6. \Vhich the following stereo-isomer is very active in construction of bloodvessels?

(A) (-) Nicotine

(C) S-(+) Adrenaline

(D) (-)Thyroxine

67. Which two of the following statements are correct for Phenol?

(1) Phenol is more acidic than alcohol.

\e \, !

with neutral Ferric chloride solution.

with acetyl chloride gives Phenetolef-

and (3;

Phenol is used in production of melamine plastic.

Phenol gives violet

(B) Statements

(C)

(D) Statements (3) and (4).

(4)

(2)

(3)

(B) Ethanal

(D) Ethanoic acid

On oxidation of organic compound A with Na2Cr207 and H2S04 gives compound

B, which on reduction H2 in presence of Ni catalyst gives Ethyl alcohol.

Give tnp A. [ v\l\"L.'-1'rJ j

(C) Ethene

68.

iwl~ J:1

69. Which product will be obtained by Grignard reaction, when Formaldehydereacts with Ethyl Iilagnesium iodide?

(A) ?

dumal

(B) 1- Propanol

(D) 2 - Methyl, 2 - Propanol


~\ \ ,\ '.ii

BOOKLET A102-A

[20]

( ~\ eeL,,J -'

(A) Ethanol

(A) 2- Propanol

The formation of Cyanohydrin from Acetone is which type of reaction?

A) Electrophilic addition reaction.

cB) Electrophilic substitution reaction.

(C) . substitution reaction.

ucleophilic addition reaction.

71. Which one is not a Sandmeyer reagent?

•

(A) Cu2Cl2 + HCI

(C) CU2(CN)2+ KCN

(B) CU2Br:? -+ PEr

72. Which is the mCOiT

(A) anide

liw1 isonitrile

(B) Aceto isonitrile

(D) Methyl carbylamine

73. State the monomer of Teflon.

CH2 = C - CH = CH2ICI

Which one of the following is not a homo-polymer?

(A) Dacron rubber

(C) Bakelite (D) Buna-S


.,

BOOKLET A102-A

[21] F!T.O.

Methyl isocyanideMethyl isonitrile

75. Which one of the following statements is incorrect for the Sucrose?

(A) It is not reducing sugar.

(B) It is obtained cane sugar.

gives aspartame when it is heated at 210°C.

(D) On hydrolysis, it gives equal quantities ofD-glucose and D-fructose.

76. What is the chemical name of the vitamin Bl2 ?

(A) Thiamin (B) Riboflavin

(C) Pyridoxin c,nne

77. A base-sugar unit in Nucleic acid is called .

;"I~·····.·····.·.. j

'If'

Phosphotide

(C) Neucleotide (D) None of these

78. Which substance is obtained when Kaolin is heated at high temperature?

{A) Alitame

I B i Ceramics

Ie) Sodium metabisulphite

(D) Sodium hydrosulphite


BOOKLET Al02-A

[22]

C Non-ionic

-~---------------------------------.Cetyl tri methyl ammonium chloride is which type of detergent?

(B) Cationic

(D) Biosoft

80. Name the end product in the following series of reaction.

-'

(A) CH4

(B)


BOOKLET A102-A

[23] :P.'"r.O.

CH3OH

Gujcet 2008 Physics & Chemistry

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