AIEEE Physics Important Questions 2009-2

8/13/2019 AIEEE Physics Important Questions 2009-2

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Physics Important Questions for AIEEE 2009

1. M be the mass of a body at the surface of earth. What is the weight of the object at the centre of theearth?

a) 0 b) 3.9N c) 5N d) .9N

!. Which of the fo""owing is not an e"ectro magnetic wa#e

a) $%rays b) a"&ha%rays c) gamma%rays d)

"ight rays

3. ' transformer wor(s on

a) * on"y b) '* on"y c) both '* and * d)high #o"tage on"y

. +he conducti#ity of a su&er conductor is

a) infinite b) #ery "arge c) #ery sma"" d),ero

5. +he dimensions of magnetic fie"d intensity -- is

a) M/+!1 b) M/+11 c) M+11 d)M/!+!

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2. +he net charge on current carrying conductor is

a) &ositi#e b) negati#e c) #arying d) ,ero

. uring the &rocess of induction some of the charges of the inducing body is

a) "ost b) gained c) first gained and then "ost d)neither "ost nor gained

4. When an e"ectric di&o"e is &"aced in a uniform e"ectric fie"d it e$&eriences

a) force on"y b) tor6ue on"y c) oth force and tor6ue d) Neither force nor tor6ue

9. +he weight"essness e$&erienced whi"e orbiting the earth in s&ace shi& is the resu"t of

a) acce"eration b) ,ero acti#ity c) inertia d)centre of gra#ity

10. 7ow much energy wi"" be necessary for ma(ing a body of 500 (g esca&e from the earth?8g9.4m:s!radius of the earth 2.;104m)

a) 'bout 9.4;102< b) 'bout 2.;104< c) 'bout 3.1;1010< d) 'bout !.;101!inetic energy d) None

13. ' toy of mass 1 (g is &"aced on a s&ring ba"ance. udden"y the toy jum&s u&wards. When it ha&&ensthe reading of the s&ring ba"ance changes from 1 (g to 1.10 (g. What wi"" be the ma$imum #a"ue of theu&ward acce"eration of the toy? +a(e g10ms!

a) 1ms2 b) 0.1ms2 c) 0.01ms2 d)0.001ms2

1. ""uminance of a surface is measured in

a) Lumen b) Candela c) luxm2 d)lux

15. +he radius of a soa& bubb"e is r and the surface tension of soa& so"ution is +. >ee&ing the

tem&erature constant the bubb"e is b"own to twice diameter. +he necessary energy wi"" be

a) 24 r2T b) 8 r2T c) 12 rT d) 16r2T

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www.amaderforum.com12. +wo masses of 1g and g are mo#ing with e6ua" (inetic energies. +he ratio of their "inear momenta is

a) 4:1 b) 2:1 c) 1:2 d) 1:16

1. ' body is re"eased from a great height and fa""s free"y towards the earth. 'nother body is re"easedfrom same height e$act"y one second "ater. +hen the se&aration between the two bodies two secondsafter the re"ease of the second body is

a) .9 m b) 9.4 m c) 19.2 m d) !.5 m

14. @ne com&"ete set of negati#e and &ositi#e #a"ues of a"ternating 6uantities is ca""ed

a) time &eriod b) am&"itude c) fre6uency d)cyc"e

19. When a f"uresent tube is used in an ac circuit a

a) cho(e is connected in series with it b) a resistance is connected inseries with it c) a cho(e is connected in &ara""e" with it d) none of theabo#e

!0. +he critica" mass of a fission reaction is

a) the mass to start a nuc"ear fission reaction b) the minimum mass forthe chain reaction c) the si,e of the reactor core d) the si,e of thefue" Asi,e of the moderator

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!1. +wo wires of e6ua" "ength and of materia"s $ and y ha#e e6ua" resistance. +he ratio of the radii of thetwo wires is 1B !. +he ratio of the resisti#ities of $ and y wi"" be

a) 1 B 1 b) 1 B ! c) 1 B 3 d) 1 B

!!. o"ar ce"" is a

a) po!o "ola!#c cell b) po!o conduc!#"e cell c) po!oem#ss#on cell d) bu!!on cell

!3. ' sim&"e harmonic osci""ator has an am&"itude ' and time &eriod +. +he time re6uired by it to tra#e"from $ ' to $ ':!

a) +:2 b) +: c) +:3 d) +:!

!. We &refer common emitter configuration of a transistor for am&"ification because

a) of "arge current gain and hence &ower gain b) of sma"" current gain c) safety in o&eration d) of "ow &ower "oss

!5. When a ray of "ight enters a g"ass s"ab from air

a) its wa#e"ength decreases b) its wa#e"ength increases c)its fre6uency increases d) none of the abo#e

!2. n interference there is redistribution of

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a) am&"itude b) fre6uency c) &hase d)energy

!. ' soa& fi"m of surface tension 30;103Nm1 is formed on a rectangu"ar frame. t can just su&&ort astraw =C as shown in the figureB f g 10ms! the mass of the straw is

&hmof!3

a) 0.3g b) 0.03g c) 3g d) 0.2 g

!4. ' ba"" rises to the surface at a constant #e"ocity in a "i6uid whose density is times that of the materia"of the ba"". +he ratio of the force of friction acting on the rising ba"" and its weight is

a) 3 B 1 b) 1 B 3 c) B 1 d) 1 B

!9. +he #a"ue of e"ectric charge on any object cannot be "ess than

a) 4.8$101%C b) 1C c) &.2$101%C d)1.6$101%C

30. +he dis&"acement current f"ows in the die"ectric of a ca&acitor when the &otentia" difference across its&"ates

a) #s #ncreas#n' w#! !#me b) decreas#n' w#! !#me c)becomes (ero d) bo! a and b

31. Which of the wa#e cannot be &o"arised



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a) rad#o wa"es b) xra*s c) + ra*s d)lon'#!ud#nal wa"es #n 'as

3!. Dreen house effect (ee&s the earth-s surface

a) cold a! n#'! b) warm a! n#'! c) dus!* and cold d) m#s!* a! n#'!

33. n a charged ca&acitor the energy is stored in

a) the fie"d between the &"ates b) in the &ositi#e charges c)in the negati#e charges d) on the &"ates

3. +wo &ara""e" wires carrying current in o&&osite direction

a) attract each other b) re&e" each other c) do notaffect each other d) none of the abo#e

35. Ere6uencies in the F7E range norma""y &ro&agate by means of

a) 'round wa"es b) s,* wa"es c) surface wa"es d)

space wa"es

32. *hoose the wrong statement. +he amount of heat de#e"o&ed in a conductor is direct"y &ro&otiona" to

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www.amaderforum.coma) the s6uare of current f"owing in the conductor b) the resistance of theconductor c) time for which the current is &assed d) resisti#ity of theconductor

3. Garths magnetism originates from

a) cosmic rays b) u%# rays c) radio rays d)circu"ation current in the core of the earth

34. ' s&here ro""s on a &"ane surface. +he ratio of its (inetic energy of rotation to its tota" >G is

a) ! B b) ! B 5 c) 1 B 3 d) 1 B 2

39. +he foca" "ength of a con#e$ "ens is minimum for

a) red b) #io"et c) b"ue d) green

0. M be the mass of a body at the surface of earth. What is the weight of the object at the centre of theearth?

a) 0 b) 3.9N c) 5N d) .9N

*hemistry

1. e"f condensation of aceta"dehyde in the &resence of di"ute a"(a"ies gi#es



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a) an aceta" b) an a"do" c) mesity"ene d)=ro&iona"dehyde

!. Which of the fo""owing does not gi#e iodoform test

a) Gthano" b) Gthana" c) 'ceto&henone d)en,o&henone

3. G"ectro&hi"e in the case of ch"orination of en,ene in the &resence of Ee*"3 is

a) *"A b) *" c) *" d) Ee*"3

. Which of the fo""owing is e$tracted by the e"ectrometa""urgica" method?

a) *u b) Ee c) Na d) 'g

5. Hn does not show #ariab"e #a"ency because of

a) com&"ete -d- subshe"" b) inert &air effect c) s!subshe"" d) none of them

2. 'dsor&tion is mu"ti"ayer in the case of

a) &hysica" adsor&tion b) chemica" adsor&tion c) both d) none of both

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. Which e"ement is the end &roduct of e#ery natura" radioacti#e series?

a) =b b) n c) * d) i

4. =re#ention of corrosion of iron by Hn coating is ca""ed

a) Da"#ani,ation b) *athodic &rotection c) G"ectro"ysis d) =hotoe"ectro"ysis

9. +he state of e6ui"ibrium refers to

a) state of rest b) dynamic state c) stationary state d)state of inertness

50. Eor a first order reactiont1! isinde&endent of

a) nitia" concentration b) cube root of initia" concentration c)Eirst &ower of fina" concentration d) s6uare root of fina" concentration

51. ' E.*.* cryste" contains how many atoms in each unit ce""

a) b) 2 c) 3 d) 4

5!. +he &yramida" geomatry is associated with



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a) *7 b) N73 c) 7!@ d) *@!

53. Neutrons are disco#ered by

a) Iutherford b) /angmeir c) *hadwic( d)'usten

5. +he ma$imum amount of a@&reci&itated on mi$ing a*"!80.5M) with 7!@81M) wi"" corres&ond

to

a) 0.5M b) 1M c) 1.5M d) !M

55. 7a"oform reaction can be used for &re&aring

a) 7a"ogens b) **" c) *7*"3 d) 7a"ides

52. 7insberg reagent is

a) *275@37 b) *!75N@ c) *275@!*" d)*275N!*"

5. Which of the fo""owing s&ecies &artici&ate in su"&honation of ben,ene ring?

a) 7!@ b) 7@3 c) @3 d) @!

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54. ynthetic detergents be"ong to the c"ass of

a) macromo"ecu"ar co""oids b) mu"ti mo"ecu"ar co""oids c)associated co""oids d) mu"ti atomic co""oids

59. 'n emu"sifying agent among the fo""owing is

a) water b) coconut oi" c) >erosene d)

soa& so"ution

20. +he a"dehyde which is formed during &hotosynthesis in &"ants is

a) methana" b) acceta"dehyde c) &ro&ana" d)&heny" methano"

21. 'ceto$yben,oic acid is

a) antise&tic b) as&irin c) antibiotic d)mordant dye

2!. Most ha,ardous meta" &o""utant of automobi"e e$haust is

a) mercury b) "ead c) cadmium d)co&&er



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23. io%degradab"e &o""utant is

a) domestic waste b) + c) Mercury sa"t d)a"uminium foi"

2. Which nob"e gas is most so"ub"e in water ?

a) 7e b) 'r c) Ne d) Je

25. Dun meta" is an a""oy of

a) Mg n Hn b) *u Ni Hn c) cu n Hn =b d)*u b Hn =b

22. Nitrogen is re"ati#e"y inacti#e e"ement because

a) ts atom has a stab"e e"ectronic configuration b) t has "ow atomic radius c) its e"ectronegati#ity is fair"y high d) dissociation energy of its

mo"ecu"e is fair"y high

2. +he com&ounds of a"(a"ine earth meta"s ha#e the fo""owing magnetic nature

a) diamagnetic b) &aramagnetic c) ferromagnetic d)antiferromagnetic

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www.amaderforum.com24. +he F='* name of tert%buty" ch"oride is

a) %*h"orobutane b) !%*h"orobutane c) 1% *h"oro%3%methy"&ro&ane d) !%*h"oro%!%methy"&ro&ane

29. 7ydrogen beha#es as an o$idising agent in its reaction with

a) ch"orine b) nitrogen c) sodium d) su"&hur

0. +he meta" that disso"#es in "i6uid ammonia gi#ing a dar( b"ue co"oured so"ution is

a) tin b) "ead c) sodium d) si"#er

1. +he correct order of atomic si,e of * N = and fo""ows the order

a) NK*K=K b) *KNK=K c) NK*KK= d)*KNKK=

!. Which of the fo""owing meta" is obtained by "eaching its ore with di"ute cyanide so"ution

a) si"#er b) titanium c) #anadium d) ,inc

3. *assiterite is an ore of

a) Mn b) Ni c) b d) n



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. 'ccording to ohr-s theory the energy re6uired for the transition of 7 atom from n2 to n 4 state is

a) e-ual !o ener'* re-u#red for !e !rans#!#on from n / !o n s!a!e b)lar'er !an #n ) c) less !an #n ) d) e-ual

!o ener'* for !e !rans#!#on from n !o n % s!a!e

5. Damme$ane is

a) *h"oroben,ene b) en,y" ch"oride c) romoben,ene d)en,ene he$ach"oride

2. +he name associated with e6uation G G3AI+nE"nLMnALM is

a) "an der aal e-ua!#on b) 5er!elo! e-ua!#on c)erns! e-ua!#on d) 7#!er#c# e-ua!#on

. 't the same tem&erature and &ressure which of the fo""owing gas wi"" ha#e highest >.G. &er mo"e

a) 7ydrogen b) @$ygen c) Methane d)'"" the abo#e

4. Mar( the correct statement. n a re#ersib"e reaction

a) !e ca!al*s! ca!al*ses !e forward reac!#on b) !e ca!al*s!ca!al*ses !e bac,ward reac!#on c) !e ca!al*s! #nfluences !e d#rec! and !ere"erse reac!#on !o !e same ex!en! d) !e ca!al*s! #ncreases !e ra!e offorward reac!#on and decreases !e ra!e of bac,ward reac!#on

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9. Which of the fo""owing is a co""igati#e &ro&erty?

a) me"ting &oint b) osmotic &ressure c) free,ing &oint d) sub"imation tem&erature

40. Which of the fo""owing is an internsi#e &ro&erty?

a) #o"ume b) mass c) density d) energy

Mathematics

41. f f8$A 1$) $!A1$! $ 0 then f8$) is e6ua" to

a) $! % ! b) $! c) $! % 1 d) $! A 1

4!. um of the foca" distances of an e""i&se $!a! A y!b! 1 is e6ua" to

a) 1!1 b) !3 c) 3 d) none of these

8&. Te cond#!#on so !a! !e l#ne x ') cos 9 * f) s#n 9 #s a !an'en! !o x2 *2 2'x 2f* c 0 #s

a) '2 f2 c ,2 b) '2 f2 c2 c) '2 f2 c2 ,2 d) '2 f2 c



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4. f two circ"es $! A y! A !g$A !fy 0 and $! A y! A !g-$ A !f-y 0 touch each other then

a) gf g- f- b) g- f gf- c) gg- ff- d) none of these

45. +he number of &ossib"e switching circuits with three switches is

a) ! b) 3 c) d) 5

42. ' statement with truth #a"ue E is

a) 5e!ween !wo d#s!#nc! ra!#onal numbers; !ere are #nf#n#!el* man* #rra!#onalnumbers. b)


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www.amaderforum.com49. +he deri#ati#e of $2 A 2$ with res&ect to $ i$

a) 12 x b) x4 c) 6x/ 6x lo' 6 d)6x/ x 6x1

90. O0 s#n/ x dx

a) 8>1/ b) 1/16 c) 8>1/ d) 0

91. +he sma""est &ositi#e integer which can be e$&ressed as sum of two different cubes in two differentways is

a) 1000 b) !9 c) 1!9 d) 1!4

9!. +wo "ines which do not "ie in the same &"ane are ca""ed

a) parallel b) #n!ersec!#n' c) co#nc#den! d)s,ew

93. f a$! b$ A c 0 is satisfied by e#ery #a"ue of $ then

a) b 0 c 0 b) c 0 c) b 0 d) a b c 0

9. f sin ' sin cos ' cos then the #a"ue of ' in terms of is



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a) n 5 b) n 1)n 5 c) 2n 5 d)2n 5

95. Which of the fo""owing is correct

a) tan 1 P tan ! b) tan 1 K tan ! c) tan 1 tan ! d)tan 1 !:3 tan !

92. ' circu"ar wire of radius 3 cm is cut and bent so as to "ie a"ong the circumference at a "oo& whoseradius is 4 cms. +he ang"e in grades which is subtended at the centre of the "oo& isQ

a) /0 'rades b) 20 'rades c) 2/ 'rades d)none of !ese

9. f n R ! then the number of onto ma&&ings or surjections that can be defined from S 1!3T..nU onto S1 !U isQ

a) n! b) !n c) n! % ! d) !n! % !

94. f ' and are two sets then ' ?8' @)V is e6ua" toQ

a) b) 5 c) A d) none of these

99. ' "ine is &er&endicu"ar to $ A !y A !, 0 and &asses through 80 1 0). +he &er&endicu"ar distance ofthis "ine from the origin is

a) ! b) 3 c) 5! d) 53

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100. f tangents are drawn to the e""i&se $!A!y!!then the "ocus of the mid&oint of the interce&t made bythe tangents between the coordinate a$es is

a) 1!$!A1y!1 b) 1$!A1!y!1 c) $!!Ay!1 d)$!Ay!!1

101. f the roots of the e6uation 1$A&A1$A61r are e6ua" in magnitude but o&&osite in sign then the&roduct of the roots is

a) 2p2-2) b) p2-2) c) p2-2)2 d)p-

10!. f =8$)a$!Ab$Ac and C8$)a$!Ad$Acac0 then the e6uation =8$) C8$)0 has

a) four rea" roots b) e$act"y two rea" roots c) at"east two rea"roots d) atmost two rea" roots

103. f the difference between the roots of $!Aa$Ab0 is same as that of$!Ab$Aa0ab then

a) a b40 b) ab40 c) a b 40 d)a b40

10. +he e6uation of the common tangents to the &arabo"a y$!and y8$!)! are

a) *4x1) b) *4 c) *4x1) d)*&0x/0



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10/. Bn a 5C #f s &&2; &5*303 'A!1!03 then the "argest side is

a) ! b) !! c) !83A1) d) 31

102. /et ' be a chord of the circ"e $!Ay!r! subtending a right ang"e at the centre.+hen the "ocus of thecentroid of the triang"e =' as = mo#es on the circ"e is

a) &arabo"a b) circ"e c) e""i&se d) &air of

"ines

10. +he number of #a"ues of ( for which the system of e6uations 8(A1)$A4y(($A8(A3)y3(1hasinfinity of so"utions is

a) 0 b) 1 c) ! d) infinite

104. f ' L101!!L!0131$*L1!1 and L15A$1

such that 8!'%3)* then $

a) 3 b) % c) %2 d) 2

109. ' student is a""owed to se"ect atmost n boo(s from a co""ection of 8!nA1) boo(s. f the number ofways in which he can se"ect at"east one boo( is 23 then n

a) 3 b) c) 2 d) 5

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110. +he term inde&endent of $ in the e$&ansion of 81A$A!$3)83$!!13$)9 is

a) 1! b) 15 c) 19! d) 195

111. f n1A6A6!A....A6n61 and n1A6A1!A86A1!)!A....A86A1!)nthen

8

n

A

1

1

)

A

8



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n

A

1

!

)

1A8nA13)!A.....A8nA1nA1)n

a) 2nDEn b) 2n1DEn c) 2nDEn1 d)2nDEn1

11!. *r8nr)then anXr0n1*r then Xr0nr*r

a) n1)an b) nan c) nan2 d) noneof !ese

11&. Bf F 1) be a cube roo! of un#!* and 1F2)n1F4)n; !e leas! pos#!#"e "alue of n is

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www.amaderforum.coma) ! b) 3 c) 5 d) 2

11. /et uY #Y wY be such that uYA#YAwY 0 ZuYZ 3 Z#YZ ZwYZ 5. +he #a"ue of

u

."G"G.wG wG.uG

a) 4 b) 2/ c) 0 d) 2/

115. ' tetrahedron has #ertices @ 80 0 0) ' 81 ! 1) 8! 1 3) *8%1 1 !). +he ang"e between the faces@' and '* is

a) cos11%&/) b) cos11&1) c) &03 d)903

112. ' coin is tossed n times. +he chance that the head wi"" &resent itse"f an odd number of times is

a) mA1!mA1 if n!mA1 b) m!mA1 if n!mA1 c) 1! on"yif n!m d) 1! for any n

11. +hree faces of a fair die are ye""ow two faces red and one b"ue. +he die is tossed three times. +he&robabi"ity that the co"ours ye""ow red and b"ue a&&ear in the first second and third toss res&ecti#e"y is



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a) 12 b) 11! c) 1! d) 132

114. ' &erson goes to office either by ar scooter bus or train the &robabi"itites of which being 13!1res&ecti#e"y. +he &robabi"ity that he reaches office "ate if he ta(e car scooter bus or train is !919 919res&ecti#e"y. f he reached office in time the &robabi"ity that he tra#e""ed by car is

a) 15 b) 19 c) !11 d) 1

119. +he 7.M of the two numbers a and b is .+he arithmetic mean ' and geometric mean D satisfy there"ation !' A D! !. +hen a! A b!

a) 5 b) 0 c) 32 d) 35

120. Hor 0I9I2; #f xXn0[cos2n9s#n2n9;!en x*(

a) $,Ay b) yA, c) y,A$ d) $AyA,

AIEEE Physics Important Questions 2009-2

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