~ w ~uo!sJaA w qs!$Iug @ ' u~ m w ' & w * - w & ~ * o y s a n b d u e j o u o g e l s u e y uy &!118!qw~ d u e j o asp2 UI

*~eu!js e pa4ea.q a q

IIP~S

.-

i a ~ s u v / l a l y o o gp a l ayl u! a x d s pa!j!3ads ayl u! lda3xa asla a i a q ~ A u e.ou 1101 1noL al!l1u JOLI o a 'laall5 laMsuv alp uo s y i e u Leys Lue ayelu IOU o a .paplog lou I plno~lssalvp!pue? aL1.L ' L s! laaqs .la.MsuVall1 ~ P L Ialnsua 'laa115.ia.\+suvall1 P U P lalyoog qsaLail1 i l ~ o qjo l u a ~ u a x l d aloj l . I ~ I P ~ ! ~ail1 !AII~

.

0 1 .la)jKLLl d~1.1 J.lUL1d.l /

?

- - ....- - .- ....-

\ ( ~ ~ K ! ~ ~ ~ L L ItLl (LtI l!u ~ [u >

~

~

- ..I . t

V ~L

t

!

~

#

J,(sueda.~3s!k~ jo ase2 ul .lalyoog s!i11 ilo lei[l se a u ~ u s 211) 7 JlaaqS .laMsuy all4 40 Z - a p ! ~ UCJ pa1~11.1d gar73 sill 1uil1 alns ayuw s! lalyoog s!ql l o j gc-103 ailj- '9 . u a y l q l ! +a[yoog ~ lsaL s!y~A e ~ ae y q 01 psMoIIe alv salepIpue3 aqL . I ~ ~ H / U J Oaql O ) JQ U ! A U ~ I alojaq ~ole1!2!~u!a q l o l laatis J ~ M S U Vaql ~ a h b ~ u v y l s n w aqep!puea a q l 'lsal a q l 30 u o ! ~ a l d u o 3 u o .c ,X1uo Jalyoog Isaj- aql u! asod~uclS I L ~ I .loj p a p ! ~ o l da x d s alp uo auop aq 04 s! y i o @no8 ~ 't

-a

.jalqoog 4sa.l. s!i14 3 0 . i a A o j y ~ u t al y l u o suo!1~11.14sulay4 d11njalu;, p u a ~

~ b k & w m . ~ ~ w w p ~ ~ L & ~ &

,/

.os o p oq p a y s u a l u n o d [ g u n ~ a ~ q Ios a oL sly4 ~ u a d o 4ou o a

1$!&0t,kW& .saSed op su!ujtlo3 lalyoo{~s!qL1

Z l O U7 O CL T,

:' O N

03s

wWWF a p o a lalyooa ~

s

a

~

~

I%~*W-@&U@&WW

(p) IW

* W B W ~ % ~ @ U*W~hB@~@&*I?

P(c ~ (z)

I*@

~ @ W W ~ $ G W

' ~ w U * W * @ W ~ U

.laylaBol s11as Bu!lnoqy%!au daay 01 Su!+~aluasBu!lulopad W .anss!l e ssolse %!yea1 luolj asuelsqns dols .laylo ysea w o q sIIas OM^ aleledas



.sa~nsa~olu

aBlel awos pue saInsaIolu [[elus 'suo! jo lajsueq ~p!del&loj luse~dolXs @ a y l 8 u ! $ ~ a u u oX~ q s(1as ~u!u!o!pe uaaMlaq uo!les!unluwos alel!I!sej

(p) (E) (2)

(1)

mod (€) aalu (7.) XIS (1) i X l a ~ olo~ladns ahey slueid Xuew ~ o ' dyq n ~pue uo!uo {Jaqwnsns 'ehed3 'olelod '~eCu!lq 'plelsnur 'as01 eu!qs Suoluv aleyd~nsu!l!o.~puoys pue aleydlns u!le.ray (p) suasX18od!l (s) au!wesosnlB ~Xlase- N (2) au!luasosnlB - a (1) :jo uo!les!~auX[odayl Xq pdluluj 5! 5pLJdoll/l.lc!jo UU4d[dybLJXd >lluU!+!L(JdC1L

[[as a ~ ! l a l a B au~puu s ~ u ~ aOMJ ds (p) slulads aalyJ (c) sIIa3 a ~ ! ~ e j a BOM^ a ~puv uuads alBu!s (z) [la3alu~e~aBalz a pua w a d s alBir!~ (I) s a ~ n p o l dsuladso!Bue u! a~Xydo~alue8 alem %u!l!edasaq X~a4uaura1dluo3 (p) aln.1 s, jji?4.ruil3 (g) saseq snoira5o.rl!ir > ! / ~ ~ C ~ O 1 . I J(z) I~/ splIa [Xso.rplil[ ,g pL1V llC.rollclsollil ,< (I)

i VN?l 04 a[qus!~ddl.4011 s! S~l!,\\olloj~ ~ JU1 , 1I U O 11"11,p\

.rnoloq~ans (9) iro!l~sod.r,~,\~ol!l (c) J1' 1111, ?,>,, (2) 1

1

1]

: ssn ~

(1)

o pu!p ~ a p u a m'sluald uad lro s~ua~u!.rsdxs ~ ! s s u ps!l~"1

'1

z

a d o l a ~ u .a ~ e a [ ~ n(p) ~

auosoq!u

(1)

i [[a3-3!lolC~e~o.d' e u! punoj IOU s! saJnj3n.1js 2urd+io[[ojayl jo l p y ~ '£1 sawlCzua uo!j31.1jsaa F@L@

(p)

(£)

k b9(z)

&?.I$

(1)

i&~ltb.e@

>u+3.gk&w4alh1t.ltbf.*w'h&'p

'ZT.

: 1lail.w p.[uall s! PLIIIOS pi103as aqLL 'a13A3 3u!b-7.1~3 i[3ca 2 u ! ~ n ppa3npo~d s p u n u s ail1 .Ivay 0 4 ado3soiijaj:; asn s.rouoa

'Sk-70.1ou S V L j~ t ~ q1.1n330sau03jo ICj!suap 118!11

(p)

-01

.iawojsuelL

(p)

la!.ue3

(E)

aleld~r1a.L

(z)

JOJxA

(2)

: palies s! S u ~ u o l.roj s pa~e~Zalu! s! jsa.xalu! jo aua2 aql q s ! y 01 ~ alnsaloui V N a aqL

.ialu,w ti! s.ru2ns ~>a,\loss!a (t) alnssald juo.i aA!.l!sod

(E)

slassaA iua~Xsju L I C > ! I ~ ~ ! J !(z) L~~!~ . r a l e j~o 11l2ua.i~~ al!sua~

(I)

: jo asnu2aq ~~@l!a,w sl! lapiin y ua.rq ~ o saop u saa.r.1LIEIjo slassaA uialAx U I L ~. i~a ~l eIjo ~ LrLunlos v

! !

!

(!!)

(A!)

(!!I)

(9 (11)

(1)

(!!I

(5)

(I!?)

(€)

!

!

b)

(!!I)

A !

(I-)

!

(!I

au!lol y 3 pue asaue2uew

(p)

au!loly3 pue u1n1sau2ew

(E)

u~nuapqlilowpue un!sauSew

(z)

un!sselod pue asaue2uew

(I)

i uo!pea.i s!yl u! par\lor\u! s! sluauala jo sl!ed % U ! M O ~ ~ Oayl J jo

auo y ~ ! ~ y s~a ~ n 3 a laleM ~ o u uolj % u ! ~ n paA1oAa p sauIo3 s!sai~luLso~oyd ua%LxoayL ea.ru ual\!2 e u! s l n x o uo!l!sodiuo3 sa!~adsu! a%uey3alqelxpa~dpue 1enpe.B ayl

'62;

(p)

, ( ~ ! U I I L L I L U O~~ a a u o ~ palle3 d s!

P U P juaiuilo.l!.\ua ail4 i[j!.\z u~n!.~y!l!nha Ieau u! s! luill .\l!uniuiun~e 03 peal sa2ueip ail1

(€1

'~llulsuo;,

i$

'ON PUP '0s

(5)

lsnp pue '0

(E)

eiuse[J u! u!Sou!.rq!d

(p)

w

W * W ~ * ~ C . * . & ~ 'LZ ~ W

-

kyp$Li@W

--GI--

kk$hJLtU@

(E)

*$

(z)

kPq&s&?hh+

(I.)

(E)

s;,l,\'30ulsu~1

(2)

su!Lunqlr iun.L+

iJ&+MU@hLgl

-k

su!lnqolB Lun.laS

(1)

i J ~ L I ~ P ! :,C.IO~~LLI.I!~LIOZI \J .ioj

@ @ ~ w % @ m ~ ~ 2 ~ Sii!.i,iolloj * yo01 @ no,< plno,\i ail1 jo ~13!i1.\101 fi~os.~ad P4

03s

l!$+ l$ .&.i2JUJi

l2kJ.k&!@

W kJh

e

'SZ

9

ii!

sa!poq!~i~e jo ,(3ua!3!jap .ro!eiu l ~ a d s n snoL j~

*SZ

a

I

I

~!nvl3el

1

-..

(z)

alddv

(I)

11\s1na .s

.

?-

a

'CC

i s , i e . ~ \ ~ l,i.rnlVln3.113 ~eJ a~e.~vcias O,LI~

I

suy

~ ~ ~ L U I ~ ~ V ~ ~ I ! all3 . M O joI airo I O J 1{.1!1[,%~

j i ~ i ? i ~ ! i iIuiLrosojnv ~op

:

(p)

'ZE

lApgp2

*k

k!gE$

(ti)

auos!iJo3

(t)

(€1

uoF;ie3n[~>

(E)

iW&W&

s!

IOU

aiIoJaJsopIv (I) ws!loqvJaul .reSns u! palzlolzu! ~U!MOI~Oa J il3 jo auo i 1 3 ! y ~

'

(1)

-.f

(2)

"!I"SUI

(2)

sauoiuJoiI

'08

'08

-

(e) 74 I(P)

/(3)

(t)

(4'(4 '(3) (€) 4 '(4 ' P (z) (2) '(P) '(qj '(9 (1) :*M*

w

(1')

w 2,&bq2t
,

~

~

li~aolyd ,Clepi103a~

(4 ~

1 L: iuajs b

I

0 ~ .),C~OO:\I ~ 3 0 II! w ~

(3)

(q)

Pooh1

(e)

xaj.103 ,C.1upi103as

((3)

~

(P)

ll~allalld

~ I b N h L k h ~(2)

ap!s .~auii!01 ap!s .lajnn

1UOJj j11~L~l2~11~.1.10 .ll2t[1O j J3112.12jJ.l Ll]l,\I~ ~ l l J l l C ~ ~ d ~ l l ~ 3

~ & + I ; L U ~ ~ I 1 ~ J ~ % h l &

A X I . I O X . ' Y ~ 1I;)j all1 J O . I ~ P . I~ O

.~

~

~

~

~

J

.

k

J

~

(

) '6E l

~

$(

(

)

~

O

~ ~ () ) 111O.j ~

LIP

:\\0[3q 113.\!2 IS![

~ l l~d lU! l 2l .&~ k j ~ l j J1

'61

3

(t)

IwAJlp

m Lwggk kJ$i&

(t') (2)

(I)

i

*

'8E

(PI

I

W@ ,!LwA!g

(11

I

: si

$

(p)

(c)

I

(1)

I

u c a . ~ ;>q1 ) o1 il.1111a.1

I

?1

1S.I 1

s

I

.

l

\ 1

WL@&WA -- -- hI'q3 k kb b 1 . EL

~

~!~0lj~~.l0~Ll1?1~1111 .I,'l,ll? %>i'.\.lV] S~1~~~0.30L111L11? 3S0111\I

q $ * @ @ M W * & ~ & ~ W _ t t r 'LE n

w L € w W.-Q

J

(z)

~ k 2 h M d k 2 l k ~ L L S + U k ~ W ~ ~

!-l,~t~~

.

~ ~ l l ~ . ~ / ~ i i l ~ l ~ ~ ~

P'Z&

.-

J

rrozlirrro.rj~d

(2)

b-m

I

(:;I

(z) (I.)

.

.9E

~

s

s

\4

.Lt'

42.

I

Outbreeding is an iniporlant strategy of animal husbandry because it :

(1 (2)

is user111in producing pureliiles of aiiimals.

(3)

exposes liarmf~ilrecessive genes that are climinalcd by st.lection.

(4)

helps i ~ ac-cir i mulalion of superior genes

t

43.

I

44.

45.

46.

47.

is ~ i s e l u l i n overcoming in\,rec.cling cleyression.

A gene showing cocloniinancc has : (1)

alleles tightly 111llredon the same cliromosonie

(2)

alleles that are recessive to each other

(3)

both alleles independently expressed in the heterozygote

(4)

one allele clominaiit on the other

Whicli one of tlie following hormones though synthesised elsewliere, is stored and released by tlie master glancl ?

(2)

Prolactin

(3)

Melanocyte stimulating hormone

(4)

Anticliuretic 1iol.nione

Increase in concentration of the toxicant at successive troyliic levels is known as : (1

Biodeterioration

(2)

Bioh-ansformation

(3)

Biogeochemical cycling

(4)

Bioniagnificatioii

Industrial melanism is an example of:

(1)

Natural selection

(2)

Mutation

(3)

Neo Lamarckisrn

(4)

Neo Darwinism

The primary dentition in human differs from permanent dentition in not having one of the following type of teeth : (1)

Premolars

(2)

Molars

(3)

Incisors

(4)

Canine

D 48. Tlie wheat grain has an embryo with one large, shield-shaped cotyledon known as :

49.

I

SCO

10

(1)

Coli.orrliiz~i

(2)

Scu tellum

(3)

Coleoptile

(4)

Epiblast

4

1. 1

50.

(3)

(4)

'The body cells i n cockroach discharge their nitrogenous waste in tlie liaernolympli mainly in tlie form of :

49.

3-f*

fm$q$-&

$t4krm-;l'nm~9$~w~m@$:

-@

(1)

(2)

Urea

(2)

rn

(3)

Calcium carbonate

(3)

%f+wf4

(4)

Ammonia

(4)

Wi7h-l

Which of the following biomolecules does have a pliosphodicster bond ?

50.

e

%=f?lkR%WJJ83l?l%X*~~el &TI*?

(1)

Monosaccharides in a polysaccharide

(1)

(2)

Amino acids in a polypeptide

(2)

w-*m w+++-F*mm

(3)

Nucleic acids in a nucleoticle

3

w*m**m

(4)

Fatty acids in a diglyceride

(4)

w-fmvmf

The term "linkage" was coined by

:

(1) T. Boveri

~ ( ~ ) V % h T d F h f B ; m e ~ ~ ?

1

a.m

(2)

*.+JTm

(2) G. Mendel (3)

W.Sutton

(4)

T.H. Morgan

(3) &by

52. 52.

w*

Potassi~iinurate

I

i

qq

qrnm??

(1)

51. 51.

qq _------

a-

! !

her

3

(1) %Ti?*

I

!

%& f; 3

Which one is a wrong statement ? (1)

M1.1corhas biflagellate zoospores

(2)

Haploid endosperm is typical feature of gymnosperms

(3)

Brown algae have chlorophyll a and c, and fucoxanthin

(4)

Archegonia a r e f o u n d in Bryophyta, Pteridophyta and Gymnosperms

53. Ectopic pregnancies are referred to as :

v 3.v.Thrh

~ f ! $ & h F I l - d ; ~ ~ ~ ?

(I) (2)

~*m~f;mm*? * -

(3)

m

m

*

d

m

m

d 81 ~

%

M

/

f

!

~

a

8

k

c

~

~

$1

I

(4)

*

~

,

~

~;f*?l/

53.

ww-nfbmrnd&*: (1)

T

h

~

~

~

w

(1)

Implantation of embryo at site other than

uterus.

(2)

Implantation of defective embryo in the uterus

(2)

3qYyJJ~Th33TiTif9nTl

(3)

Pregnancies terminated d u e to hormonal imbalance.

(3)

f m o f m p 4 * f i % 3 ~ ~ $ & $ ~

Pregnancies with genetic abnormality.

(4)

(4)

I

3a-8~~1

Q I

WT~~++~TI-~~$T~~VW$$~

i pU!lq .In0103s ~ ! a q uospuel2 qay* jo Xl!l!qeqold ay4 s! l e y ~.Xl!uej bay u1 ssaupiqq Jnolo2 jo X~o~s!y ou sey O ~ ly=3!s M

I

& l ~ ~ ( w ~ E i P &

ap!~oapnu'auoua2 'aua8 r a u o s o ~ o l q 3 (p)

'LbL 'M+@ (r) ' w w ~ i " S 1 W u m

E@ & '~~~~~~~~~h~~~~

'LS

s.laiunsuo:, X.ruul!.rcl 1

AI

(p)

(t')

S1311111SL103 ~ . I E ! J . I ~ ~ ~)I(

60.

(2)

Gaseous nutrient cyclc

Carbon a n d s u l p h ~ ~ r

Sedimentary nutrient cycle

Nitrogen and Phosphorus

G~ISCOUS nutrient cycle

Nitrogen and s u l p h ~ ~ r

Sedimentary nutrient cycle

Carbon a n d P h o s p h o n ~ s

Gaseous nutrient cycle

Sulphur and Phosphorus

Sedimentary nutrient cycle

Carbon a n d Nitrogen

Gaseous nutrient cycle (4)

Sedimentary nutrient cycle

Carbon and Ni trogcn

(3)

1

In which of the following both pairs have correct combination ?

Sulphur and Phosphorus

61. The introduction of t-DNA into plants involves : (1)

Altering the pH of the soil, then heat-shocking the plants

(2)

Exposing the plants to colcl for a brief period

(3)

Allowing the plant roots to stand in water

(4)

Infection of the plant by Agrobflcteriu71z hr rrlefflcie~ls

62. The wings of a bird and the wings of an insect are : (1) analogous s t r u c t u r e s and convergent evolution

(2)

represent

pliylogenetic structures and represent divergent evolution

62.

q7ii

,fT m mi" $rz E;F;%

(1)

(2)

:

qqil Emm T? CJ~K

~ p a Jq& ~ J I I ~ Y ? m+ .>

r n +TTr6! 2 3+ m f+7rq ~i 3 .,.

'c l

(3)

homologous s t r u c t u r e s a n d represent convergent evolution

(4)

honiologous s t r u c t u r e s a n d represent divergent evolution

m$3-

?+! (3) yl,-11i1'-1ir;m(% .. 7 P

l

C

...

3~41~1 ~~ i {4d - i ~ ?kL3'T@lw.% ,$

f P l

63. Root pressure develops due to : (1)

Low osmotic potential in soil

(2)

Passive absorption

(3)

Increase in transpiration

(4)

Active absorption

64. Human urine is usually acidic because :

64. T + 3 ~ d $ & & l $ ~ . (1) ~

~

r

n

&

~

*

(1)

excreted plasma proteins are acidic.

(2)

potassium and sodium exchange generates acidity.

(3)

hydrogen ions are actively secreted into the filtrate.

(3)

m x + F W T m * ~ $ ~ ~ i

(4)

the s o d i u m transporter exchanges one hydrogen ion for each s o d i u m ion, in peritubular capillaries.

(4)

~ r i 1 k i l c h 1 l c h 1 t ~ 3iif&q ii3,

(2)

-

4

7

m

m

3

m

k

mft$l

d31 d

f

?

~ h ? d

x

w

@ir&?~S m ~

3

SCO 65.

i

66.

67.

13 A protoplast is a ceIl :

(1)

without nucleus

(2)

undergoing division

(3)

without cell wall

(4)

without plaslna melnbrane

The species confined to a particular region ancl not found els2where is termed as : (1)

Alien

(2)

Endemic

(3)

Rare

(4)

Keystone

Select the wrong statement : (1)

v

4

(2)

7

W.M. StanIey showed that viruses could be crystallized The term 'corltogrurrr ~ ~ r 7 ~ 1 1 1fli(rd~i/rz' 11 w as coined by M. W. Beijerinek

I

I

i i d

iit

(3)

Mosaic disease in tobacco and AIDS in human being are caused by viruses

(4)

The viroids were discovered by D J. lvanowski

4

68.

69.

1

1 i

70.

Axile placentation is present in : (1)

Lemon

(2)

Pea

(3)

Argerlzone

(4)

Dinntlzus

A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is : (1)

Gamete intra fallopian transfer

(2)

Gamete internal fertilization and transfer

(3) (4)

Germ cell internal fallopian transfer Gamete inseminated fallopian transfer

Destruction of the anterior horn cells of the spinal cord would result in loss of : (1)

voluntary motor impulses

(2)

commissural impulses

(3)

integrating impulses

(4)

sensory impulses

(2)

"corztngiunz z~iurrrrzflziidlirlz" T

~?fimen1-

w.3-

e!.tpuoy3oj!u pue sauosoq!l '!aIsnu (p) e!lpUoy3OJ!uI p u e s n j e l e d d e !8103 'sa~uososlC~ (Q !a13nu pug sauosoq!l 'un1n3tjal 3ywse1dopua (z) un[n3!ja.1 3!use[dopua pue sauosoq!l 'sauIosouo.ry3 (I) : ale s a u e l q u a u y j ! sa[laue8lo ~ le[n[~a-~- 9 ~ !! (I) !!

(!I)

(I) !! (A!) !

(P)

(3)

! !

(A!)

(!I (A!)

(9)

(A!) (!!)

(P)

(!!) (!!)

(z) (1)

(Q

(4

B!lpUOy3Oj!UI u!

(A!) eLUo.Ijs U! s3es snouelquau j e ~ ( 1 ) VNaJo pasuapuo3 (u) a.rn~3n.1~~ s n ~ e . ~ e d !2103 dr

u! s3es p a d e q s - m a () S~U!PIO~UI

u!JeuoJy3

(P)

aeLua?s!I

(3)

ae$s!.13 (q)

sp!oyellC~1~ (e) I1 U U J n I O 3 I UUJnIO3 I .uo!~do43a.1.103ayj lCj!~uap!pue s u i u n l o ~ a yj ~ 1 4 e p ~'SL s!saq~u/Csp!cl!l s!sa~lju,is~ ~ ! a j o .p~ i~l ' ~J Ne ~ s!sa~lju,Cssp!~ey33eslClod

(p) (E)

(z)

,Cs!.~nald (p) eulipsv (E) e!uoLunaud (z) (I) ewasliy diu2 ' s l l e l~uloaq" a y u! ~ asewep o~anp pa3npal lC1le3t~selps! a 2 u ~ ~ 1 3sxr a8 u! pahlonu! eale a ~ e ~ l n s leIoanle i13!il~ U! aseas!p Aleuowlnd ayJ a u e N 'EL

'ZL

a

SCO 77.

,

I

78.

6

1

79.

15

Auxin can be bioassayed by : (1)

Hydroponics

(2)

Potometer

(3)

Lettuce l~ypocotylelongation

(4)

Avena coleoptile curvature

77.

Which of the following layers in an antral follicle is acellular ? (1)

Theca interna

(2)

Stroma

(3)

Zona pellucida

(4)

Granulosa

Satellite DNA is important because it : (1)

shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.

(2)

does not code for proteins and is same in all members of the population.

(3)

codes for enzymes needed for DNA replication.

(4)

codes for.proteins nkeded in cell cycle.

f

i

80.

1 F'

I

81.

Cell wall is absent in : (1)

Funnrin

(2) (3)

Mycoplasma Nostoc

(4)

Aspergillus

In angiosperms, megasporogenesis :

microsporogenesis

(1)

form gametes without further divisions

(2)

Involve meiosis

(3)

occur in ovule

(4)

occur in anther

and

Roots play insignificant role in absorption of water in : (1)

Pistia

(2)

Pea

(3)

Wheat

(4)

Sunflower

78,

SCC

83. Which of the following are most suitable indicators of SO2pollution in the environment ? (1)

Conifers

(2)

Algae

(3)

Fungi

(4)

Lichens

84. Grafted kidney may be rejected in a patient due to :

(I) Cell-mediated immune response

(2)

Passive immune response

(3)

Innate immune response

(4) Humoral immune response 85. Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum : (1)

Porifera

(2)

Mollusca

(3)

Protozoa

(4)

Coelenterata

\

86. In which group of organisms the cell walls form thin nv~rlappinpshells which fit together ? !l.~r+

(1)

Euglenoids

(2)

Dinoflagellates

(3) Slime moulds

(4)

Chrysophytes

87. Choose the wrong statement : (1)

hfeurospornis used in the study of biochemical genetics

(2)

Morels and mushrooms

(3)

Yeast is unicellular and useful in fermentation

(4)

truffles are poisonous

Penicilliu?n is multicellular and produces antibiotics

88. In human females, meiosis-I1 is not completed until ? (1)

fertilization

(2)

uterine implantation

3

8

SCO 89.

17

Eutrophication of water bodies leading to killing of fishes is malnly due to non-availability of :

89.

(I) light

~(4)

-

q @ f Q j & j f$q&rn m $ , m m = i * % r n * i t ? ----

d

(2) essential mlnerals (3)

,m4-

m

~~

(2)

OXY gen

(3)

food

*

(4)

B

90.

Fhl?

(2)

nucleosiciase

(1)

3mlb

(3) Iipase

(2)

(4)

(3) (4)

* *

maltase

B

(1)

- CH2CI

(2)

- COOH

(3) (4)

-,/

* fsmT % ~-34&:&-~

CHC12 - CHO

-

-

If the equilibrium constant for N2(g) + 0 2 ( g )e 2NO(g) is K, the equilibrium 1 1 constant for r N,(a) + T O,(p;) ; i NO(p;)will be : -

92.

r

CHCl,

.

93.

1

1

.

(1)

KX

(2)

1

TK

(3) (4)

K K2

~

O

.

%

T

ealitl * a - e * m ~ m m $m?



h-e

O ~

~

~

~

f

75 96 60 84

(T. W : Mg=24)

94.

-

~+ O (~ ( ~ ) =) ~ N O ( ~ ) ~ - - ~

I M i l * ~ 1 ~ :1 1

(At. Wt.: Mg=24) The number of water molecules is maximum in :

QN ~ O H ~

2N2(g) + 202(g) = NO(g) m

m .

mq

- CHO

~

$1

L

20.0 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample ?

e

4 '

- CH2CI - COOH

(4)

(1) (2) (3) (4)

94.

= ' 3 l m

it? (1) (2)

-

L

93.

91.

,

~ i @ T F F ~ ~ T R % m ( S T f 3 ~ ) ~ ~ = @

nucleases

5

92.

90.

(1)

Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group ?

=i

91.

The enzyme that is not present in succus entericus is :

-*

D

m~Jti&afmFkmit:

-

(1)

18 molecules of water

(1) T M % 1 8 ~ 8 3

(2)

1.8 gram of water

(2)

(3)

18 gram of water

(4)

18 moles of water

1.8m'9Tit+

-

Jf 1 8 h d - ; f

~

@ 8

SCO

95.

,

The formation of the oxide ion, 02-(g),from oxygen atom requires first an exothermic and then an endothermic step as shown below :

0- (g)+ e-

-t

02-(g) ; A ~ H = @+ 780 kJmo1-'

0- (g)+ e- + 02-( 8 ); A,HO = + 780 kJ mol-'

Thus process of formation of 02-in gas phase is unfavourableeven though 02-is isoelectronic with neon. It is due to the fact that, (1)

electron repulsion outweighs the stability gained by achieving noble gas configuration.

(2)

0- ion has comparatively smaller size than oxygen atom.

(3)

oxygen is more electronegative.

(4)

addition of electron in oxygen results in larger size of the ion.

96.

What is the mole fraction of the solute in a 1.00 m aqueous solution ?

97.

The rate constant of the reaction A -+ B is 0.6 x mole per second. If the concentration of A is 5 M, then concentration of B after 20 minutes is :

98.

Decreasing order of stability of 02,o;, 0; and

98.

02,

o;,

0:

a q o;-

%:

f

.----in

(1)

0; > 0, > 0; > 0;-

(1)

0;>0,>0;>0;-*1

(2)

0;- > 0; > o2> 0;

(2)

0;- > 0; > 0, > 0;

(3)

02>0;>0;->o;

(3)

0, > 0; > 0;- > 0;

(4)

0; > 0:- > 0; > o2

(4)

0;

.

0;- > 0; > 0,

x

-

5~ 7 A

19 99. Which one of the following esters gets hydrolysed 99.d - 7 most easily under alkaline conditions ?

I

D

3 3 +-XJ dwa-vf&rimlt?

qpfqw3 dm

Jo'CocH3

(I)

O2* (2

(3)

74

II

1

100. On heating which of the following releases C 0 2 most easily ?

101. Which one of the following pairs of solution is not an acidic buffer ?

I

i

(1)

HC104 and NaC104

(2)

CH3COOH and CH3COONa

(3)

H2C03 and Na2C03

(4)

H3P04 and Na3P04

102. The sum of coordination number and oxidation

number of the metal M in the complex

[M(en)2(C204)]Cl(where en is ethylenediarnine) is :

103. Which of the statements given below is incorrect ?

(1) C1207is an anhydride of perchloric acid (2)

O3 molecule is bent

(3)

ONF is isoelectronic with 0 2 N -

(4)

OF2 is an oxide of fluorine

loo.

H3C0J'JococH3

ooCocH /

DoCocH3

CI

~ - ; f ~ ~ ~ ~ r n c o 2 ~ ~

*rn?

D 104. In the reaction with HCI, an alkene reacts in accordance with the Markovnikov's rule, to give a The product l-cl1lo~o-l-metl1~lcyclo11exa11e. ~.~ossihle alkenc is :

(I

SCO

20

1

104. p

~ ~~l2sfflmq&y~~q,)liq,jq,Trn% m ypm m l - d - l - f l f m - r $ 3-a $ I Fhlf%?lqFG=h :

*

105. 2,3 - Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong

acid 7

1 1

/I I!

- CH =CH2 (I) (CH3),CH - CH I

CH3 (2) I

i

<

i

(3) (4)

(CH3)3C- CH = CH,-

!ru-\-c ." L = CF-r

- - CH,

- CH,

(CH-J2CH - CH,- - CH = CH,-

106. The following reaction

is known by the name I

I

(1)

Friedel-Craft's reaction

(2)

Perkin's reaction

(3)

Acetylation reaction

(4)

Schotten-Baumen reaction

(

(4)

,

107. In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with : (1)

iron(I1) sulphide

(2)

carbon monoxide

(3)

copper(1) sulphide

(4)

sulphur dioxide

107. 4

?ITm-~sfm

----

%

WlFd

42

~

&

wsh*? (1) (2) (3) (4)

(11)

*

*-

(1)

wTi7

3wd

%

:

~

~

~

3

r

n

uo! (111)a3e~.rajop!ueiC3exa~ (9) iro! (111)alu.1.1ajouerC2!~1 (s) uo! (111)ale.~.~sjol!u~L.)exa~ (z) a~ uo! (111) u o l ! o i ~ e ~ < ~ e x(1) : s! - ' [ 9 ( ~ 3 ) a - ~'UO! ] xald~uo3jo a u e u a q l '111

34 4 \ L P

(1)

sic14, PC];

(I,

(2) (3) (4)

dianiond, silicon carbide NH3, pH3 XeF4,Xe04

(2) (3)

114. Caprolactani is used for the manufacture of Nylon - 6 Teflon 'I'erylene Nylon - 6,6

-

d $h3?$h ~@$h

-q

113. 1; which of the following pairs, both the species are not isostructural ?

l'cl;

""'I,


-

Nl-i3,1'1 {3

CB), XeF4,Xc0, 114.

m

~

~

~

f

%

7

-

i

f

-

d

hybridization involved in complex [ N ~ ( c N ) -~ ] ~ (At. No. Ni = 28)

What is the mass of the precipitate formed when 50 mL of 16.9% solution of AgN03 is mixed with 50 mL of 5.8% NaCl solution ? (Ag = 107.8, N = 14,O = 16, Na = 23, CI = 35.5) (1) 28 g (2) 3.5g 7g (3) (4) 14g Gadolinium belongs to 4fseries. It's atomic number is bZ. Which ot the tollowing IS tine correct eiecrrunic configuration of gadolinium ? (1) [Xe] 4f86d2 (2) [Xe] 4P5s1 (3) [Xe] 4f 5d16s2 (4) [Xe] 4p5d26s2 iI I

118. Which of the following is not the product of dehydration of

($5

(1) +)' (3)

4P6rf2 [Xe] 4P5s1 lXcl 4f75d16s2

?..- 3-

[XC]

" - .

3

1 3

B

Iq

.... ...-.

i9

..

ig 86

~

~

(d €

T

(z) z (I) (au!we!paualXy~a= ua) : aq II!M 13[Z13Z(ua)o-~] x a l d u ~ o sayl 101 slawos! alqysod 30 laquInN .SZ;I Zu!yaas uollsaIa IOU ale sal!ydoa~xqq (fr)

sal!s Xl!suap -a MOI y3elle sa[!ydoal3n~ (Q

a~!ydoalsnue s! ' a ! u o u r u ~ ~ (z)

p!se s!Mal e s! a p y d o a l s n ~ (1)

i apydoapnu F! 103 lsallos ~ o su! sluaualels ~U!MOI[OJ aql jo y s ! ~. B Z ~

P"oq H - d auo pup sdnol2 HO - OM$ JO asuasald (p) snloydso~ldjo ajels uorjepixo L I ~ I H (E) sn~o~ldsoild 40 l i d l e ~ ~ l uuruZ a u o ~ ~ s a1l 1a 2 1 ~ (z) sruoq H - cl OJMI put! dno.19 HO - auo jo asuar;alcl (I) 0 4 a n p sr L o ~ ~ jHo InorAeqaq 2ursnpalZuo.rj~ . Z Z ~ fro. r 0.L 0.2

(fr?

PO' I (€7) O'L (6 (2) 0.z (2) s ~ z r (I! S9'ZL !I) i . $ l l & ~ d @ k ~ ~ @ l k ~ I h ~ i pax~u~ 13H hl 10'0 PUP H O r N hl 1'0 jo samn1oA M& $I UlhltF !4bJ2 %13H I 410'0 .& HOeN I 4 T'O ~ e n b auaqM uo!lnlos 2u!ltn.sal ayI jo ~d alp s! IeqM - 1 ~ 1 IY > "3> 1L > U l (9) tV > p 3 > U I > iL (E) 1.1, > L'I > L3 ' > iv (z) 1.1.>1V>"1:,"3 (1.) :$~ 2 kh k%& & 1J. .&h LI I '":I'I \/ @ &Iki W1 W&-nI I -t

(c)

-

4 Ib. & @&?

. (PI k.E .& .&k.!2 lli

(t.1

kc_.&.&.& k y

(z)

F&. kdg ,a y!2 tO-F ( 1) iW.k@+pWW -kw4w%lhw@g*~ LJi

a

.sa.rnssa.ld MO[ PLIC s a r n ~ e l a c i ~ MOI u a ~ (p) ,sa.~nssa.~cl i14!~[PLIL? salnje.radluaj ~78!~1 (c) s;~.rnssa.~cl L$!LIpire sa.rnjl.?.~adi~lai MO~ (z) .sa.~nssa.~d ,L\o~ \>UPsa.rnleladma4 y21y (1) : J V M ~ SFS I [rap! aqj -4aqo 04 lilay!~ISOLU aq p l n o apTxouolu ~ uoqles se ysns ses V ' 6 1 1

al!ydlns ua2o~p/Cyurn!pos (9) p!3e 3!ire/C3o~p/Cy (c) uo!lnlos 3!p!3e /C~qaaggo a 3 u a s a ~ d111 au!ze~p/Cy (z) lua2ea~p ~ e u 2 ! ~ e 3 (I) : s! ~ u a 2 e a ~ q l .JaJe,ugo uo!Jeu!ur!la 1Cq paMollog uo!J!ppe 3!l!ydoapnu saAIoAu! s ~ u a 2 e a~ U~! M O I I O J ayl JO auo ~ J ! Mpunoduro3 ~ ~ ( L I oe~goJ Lu0!~3eaa '~ '~€1 (9) apAyap1ezuaq p!3e 3!ozuaq (c) ap!~pl(yue3!aleur (z) ap!~pLyue3!ozuaq (I) :sampo~d J!e JO a3uasa~dayl u! soz~ 1Cq auazuaq jo uo!~ep!xoa y l - 1 ~ 1

133.

~ n i l i n g c a n n obc t prcpnred is : I\.letlioclb y ~z~liicli hydrolysis of plienylisc~cyaniiIc ivitli
reductioii of nitrobenzene with tl,/l'cl in elhanol. (4) potassium sall of plitlialimicle Lrealed \ z f i l l ~ clilorobc~nzc.~it~ foll(~c~c.ci I,! li!*ci~.ol!,sis\\.ill) aqueous NciOI-lsolulion.

(3)

134. 'l'wo possible stereo-slruct~~res of

CH3CHOH.COOH, which are optically active, are called : (1) Diastereomers (2) Atropisomers (3) Enantioniers (4) Mesoniers

(I) (2) (3)

135. The correct statenient regarding defects incrystalline solicls is : Scliottk! defects Iinve no effect on (lie density of ss!~stallincsolids. (2) Frenkel defects decrease the density of crystalline solicls. (3) Frcnkcl clcfcct is a disloinlioi; i l ~ l e c i . (1) Frenkel defect is found in halides of alkaline (1)

7 , 7-o t.. 7.. l c- . ..

+ 136. The position vector of a particle R as a function of time is given by :

R

=4

sin(2-it) i

+ 4 cos(2-~t)j A

A

Where R is in meters, t is in seconds and i and ] denote unit vectors along x-and y-directions, respectively. Which one of the following statements is wrong for the motion of particle ? 7

2,

(1) Magnitude of acceleration vector is R' where zl is the velocity of particle. (2) (3) (4)

Magnitude of the velocity of particle is 8 meter/ second Path of the particle is a circle of radius 4 meter. + Acceleration vector is along - R .

137. The energy of the em waves is of the order of 15 keV. To which part of the spectrum does it belong ? (1) Infra - red rays (2) Ultraviolet rays (3) (4)

Y - rays X-rays

-

-

fqp*$,-$:



rn

SCO

138. A beam of light consistir~gof red, green ancl blue colours is incident on a right- angled prism. The refractive irides of the material of the prism fo~.the above reci, green ancl bluc \\ravt.le~igtlisarc-I39,I :U and 1.17,respcct~vcly.

The prism will : (1) separate all the three colours from one another

(2)

not separate the three colours at all

(3)

separate the red colour part from the green and blue colours

(4)

separate the blue colour part from the red and green colours

139. Two particles A and B, move with constant velocities +

+

ul and v2 . At the initial moment their position + + 7..?~tsrs Z',TC rl 22d ~s

Ti12 ioi~diiioii for particles A ancl B for their collision is : YCSPCC~~\-C!Y.

140. At the first minimum adjacent to the central maximum of a single-slit diffraction pattern,. the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is : IT

(1) - radian 2

(2)

.rr

(3)

8 radian

(4)

47T radian

radian

IT

"

q~ >

(5) "A

(E)

'! < '!

(z)

=

A ' < "A (1) : uayi A s! lol!sedes ssolse a 2 e l l o ~pue ! s! lois!sal il2nolyi l u a u n 3 'paII!j e3!u

S!

~ o i ~ s e duaiIM es

'palI!j 1!e S! ~ol!sedesuayM

(9) (e)

: suo!lenys OM$ lap!si103 .aslnos a 2 e l l o ~ 2u!1eiuai1e ire 01 palsauuos s! l!nsl!s 3 - 8 sa!las 'sp~

v

iw=*-Pb4 k m W I * ~ V E l W ~ - - m - v m r w $* p qp-El b 3-5

5L00 OLO.0 5ZO.O ozo.0

-

~

i se2 ayl uo auop y-10,~ wnw!xeu alp u! sqnsal ~ IelaAas JO sueau liq ssasold ayl JO i ~ s ! y.sassasold aunIoA Ie!J!u! s ~j!~ e01 i ~passalduos s! seS leap! u v

~

$

~

*

'ppl

&EkJ 'PPZ (P)

(£)

(z) (11

ozu.0 (11

'ad nju.~adii~a~ si! LI! 3 , o p jo SS!J u . I O ~L I ! ~ S ~ ,joC [.ij!si~ap ~ si~i :wC.Pb)lhqslbilK' u! a2ueip Ieuo!i3ey ailJ ., 1 t. 0 L x c s! L I ! . I J~/~~S .h ~ . 9 $ S l h ~ $ k k 2 & 3 ~ 0 P @ ~ ~ k k J + l & ~ jo uo!suedxa aiunlo,\ jo jiia!3!jjao3 jo anlv,\ ail1

'£PI

I * ~ - ~ , - o L ~ s & w w ~ ~ ~

9ih I.+

: s!

-

1 P @ k ~ & & j &b1w3hEW4P !~@28'OP !4h I$ A OE 'k hhyh &!Q 'ZPZ

'w

d

I

: aq II!M lalaiuiue ail1 u! 2u1pea.rail1 'iuilo oz jo Junils e pire u ~ y ogp o a3ire1s!saljo 1!os e sey .ralaiuwe ayl j~ ,sa!.Ias u! palsauuo3 l ~ vw i ~ go . 0 a~3ue?s!sal e pue A 0s JO l i l a l ~ ~u' q'lalaiuine ire su!vli1031!n31!3 v

A

AaN P AaN L AaN S'L A 0

(P) (E) (z) (I)

AaW L

(E)

AdN S'L

(I)

A

(1)

0

'ZPI

: S!

s u O E q!" ~ U! punos JO X1!30larz) laAJasqo ay1 Aq paruasqo A~uanbaqjualedde ailL .jsal je s! Jaruasqo ayL 'aln5hj ayj u! L I M O L ~ Sse au![ laNasqo a x n o s ayj Y+!M .09 jo alsue ue je I - siu ~ ' 6 J1O paads e y1pn 2 u ! ~ o us! axnos ay,L .Jayjo y x a u o y aJuejs!p a u o s je palem1 ale 0 laAlasqo ue pue z~ 001 X3uanbaq JO saAem 8u!$$!ua s punos JO a x n o s Q ' 6 ~ 1 -

. -..-. a! ( o w L ( ~ v LOL(4 U 4

>d)lKlq

> I ! i\q

paljliusuelJ a n h ~ oal 2 e l a ~ jeo apnj!u2t.~uail1 's ir! j s a l o ~ 11~2no.rq SI a\J!yaA ail4 11 .,LLT 4y E: s! tlo!lvln.r JO s!xe sj! jnoqe 1aail.w ail3 jo e11.1ai11 jo Juauroiu ail1 pue 111 gfi.0 S! ~1aai1~w SJ! jo sn!pul a y l - 11 iuy p s jo paads e L ~ J I . \ I p u o ~v 110saAoiu al!qoiuojne U Q

',

: lCq uai\!3 s! 'cun~u!u!~u s! Oo ii4!3olan ~ O .a(l1 I las 01 pal~nhal-?.I~J,w ~ e l n 2 u Le{J!M ~ L I I J B p0.1 aLp ~ u i l ol s ssud P I ~ O L I s!xe S aql L ~ J I L I , ilQ110.1~ll ~~ pol S ! L ~uo d +u!oJ jo uo!i!sod ~ 1 'I! 104 .~elns!l~uad~ad ~ s ~ x cu c i n o q e Sir!iaio.i !ai a q 01 s! 170.1 a y L ,sseLu alq!2!12au pue '1~142~ial jo pol p!S!l u lo spua a~!sodcloall1 4e paseld alu ZNI puu ILLI S ~ S S V L U+i~!od . ~ g

i 1!03 ayl u! paJnpu! 'due quallns jo uo!l3al!p ayl aq II!M l e q ~'uoll3ala jo yled ayj 04 4ua3e!pe p o e~ s! pJqe ayL . u ~ o y s se AX y ~ e dauq ly21ells e uo saAou uolpa[a u v

j!

. s n a l ~ n uln!loLll a q ueyl LunluaLuour ssal suy snapnu Lun!laq ailL

([)

: uaq,L 'iun!lay pue Lun!loyl O ~ L I l! sal le s l i e ~ a pLun!ue.rn jo snapnu y jo !a13n~1

-csl

'

SCO

D

31

155. A particle is executing a simple harmonic motion. Its maximum acceleration is (Y and maximum velocity is P. Then, its time period of vibration will be :

156. Two slits in Youngs experiment have widths in the ratio 1: 25. The ratio of intensity at the maxima and is :

minima in the interfere~lcepattern,

m*m~~JT;rcrn. '""&I,:

Imin

157. If potential (in volts) in a region is expressed as

V(x, y, z) = 6xy - y + 2yz, the electric field (in N/C) at point (l,l,O) is :

Imin

157.

f;& 3

fim (dF?4) d,

9'0 Pue S'O

(z)

S'O PUP 9'0

(1)

: ,
*ww*&ww1v4,3,w&

W F B ~I ~ $ J , AL, @ k@!4$ .&M&!h

w Q Q ~ ~ ~ ~ , ~ , @

@ klJilki~b 2@) ~ c l h!4 th ~ '8S1

la[li'.~ildail1 jo ssluld ail1 L L ~ ~ ILLI O I II ~, ~S V ~jo. Ia3.10.~ ~JU .sa~eldail1 u a o ~ l a qpa!lddu s! ,/\, ssua.~ajj!plu!~iia~od puu ,p, s! s a ~ e l di ~ a a ~ uo!lu.~uclas ~~aq jo a~uels!p ',3, X J ! J P ~ ~ Jsey . I O ~ ! J P ~ V J.~!e a ~ u l dlalle~edv ' 8 ~ 1

1

161. In the given figure, a diode D is connected to an external resistance R = 100 fl and an e.m.f. of 3.5 V. If the barrier potential developed across the diode is 0.5 V, the current in the circuit will be :

162. A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is verv small compared to the mass of the earth. Then,

162.

W*I

(1) the total mechanical energy of S varies periodically with time.

,&, /9i

;;tr iir~earm omentum of S remains constant in magnitude.

(3)

the acceleration of S is always directed towards the centre of the earth.

(4)

the angular momentum of S about the centre of the earth changes in direction, but its magnitude remains constant.

4

A

163. A force F = a i 4

A

A

A

+ 3 j + 6k

is acting at a point

A

r = 2 i - 6 j - 1 2 k . Thevalueof a f o r which angular momentum about origin is conserved is : (1) 2

(2) zero

wms,&4~rnw4y&~sfisr;sr-inrn % I w m ,7-33 ~ - f L (1)

cl

d:

~

+

p

~

d

m

m, 4 m

~

%

m

rn, e

l

~rq3mMm*l

I

(2)

s % r n r n m r n(rn)b m * l

~



m

SCO'

164. A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. Eo and a resistance rl. An unknown e.m.f. E is balanced at a length 1 of the potentionleter wire. The e.m.f.E will be given by :

1 164.

165. 4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas a t constant volume is 5.0 JK-I mol-I. If the speed of sound in this gas at NTP is 952 m s - l , then the heat capacity at constant pressure is

7.5 J K - ~mol-I

(2)

7.0 JK-I mot-l

(3)

8.5 JK-I mol-'

(4)

8 .J K~- i moi

m rn a q p;r;m rd,

1

165. m - m a e n w m , M?TT~~~.o~FwR~ 3~mn 22.4W$i h - m r n ~ ~-eTTfm5.0JK-1mol-1*l e , 3flk3,

TimT;9-mBVim, ' + d % ~ h 9 5 2 m s - ~ %3 3,

(Take gas constant R = 8.3 JK-I mol - I ) (1)

% tiG

L-



h*,fiwwm*mm%:

-'

(R = 8.3JK mol - l)

(1) 7.5 JK-I mol-I 2 7.0IK-'rnol-~ a '

'

166. Two stones of masses m and 2 m are whirled in

horizontal circles, the heavier one in a radius

'

I

(4) 166.

2 and the lighter one in radius r. The tangential speed of lighterstone is n times that of the value of heavier stone when they experience same centripetal forces. The value of n is :

167. A remote - sensing satellite of earth revolves in a circular orbit at a height of 0.25 x lo6 m above the surface of earth. If earth's radius is 6.38 x lo6 m and g = 9.8 ms -2, then the orbital speed of the satellite is :

~

8.0 JK-I mol-I

~

@

'

T m a8m 2 *m %~d ~ m drn 2

% i a ~ 6 ~ F R d r f % T l % ~ f % ~

167.

W w-H m,Tjedt & f; 3 0 . 2 5 ~ 1 0m~ S ~ $ T , ~ - ~ T W ~ T T ~ @ ~ - ~ W a , T j e d t d M 6 . 3 8 ~ 1 0 ~ m $ * =~ 9 . 8 m ~ - ~ (I) 8.56 km s-I

Z

(2)

9.13 km s - I

-@z~x\V

(3)

6.67 km s 7.76 km s - 1

a2 fi

(4)

SCO

35

168. A string is stretched between fixed points separated by 75.0 cm. ~t is observed to have resonant frequencies of 420 Hz and 315 HZ. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is : (1) 205 Hz

1

(2)

10.5 Hz

(3)

105 Hz

(4)

155 Hz

169. The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is -20"C, the temperature of the surroundings to which it rejects heat is :

170. Water rises to a height 'h' in capillary tube. If the length of capillary tube above the surface of water is made less than 'h', then : (1)

water rises upto the top of capillary t u h a~nd stays there without overflowing.

(2)

water rises upto a point a little below the top and stays there.

(3)

water does not rise at all.

(4)

water rises upto the tip of capillary tube and then starts overflowing like a fountain.

171. Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. Under such conditions, the density of A is found to be 1.5times the density of 8. The ratio of molecular weight of A and B is :

1 170.

I (

I

I

f%!f?&~%FI3 T i E _ ' h T ' r ~ 6 m wI 7lf?; 33 r- -

-dmMl~ch?&~h'3q*d; (1)

= l & f m a L ~ - * ~ ~ - % 'J & *=a'E&mll

. ..

sco

I

172. The Young's modulus of steel is twice that of brass. 1 172, Two wires of same length and of same area of cross

section, one of steel and another of brass are

suspended from the same roof. If wc want the lower

ends of the wires to he at the same level, then the

weights added to the steel and brass wires must be

in the ratio of :

(1) 2 : 1

I

(2)

4 :1

(3)

1: 1

(4)

1: 2

173. The input signal given to a CE amplifier having a

(3)

ii II

/I. Ii

I/*.

L I I all ~

(

300 cos 15 t

I

-4:1

+-

:.. .....n"m.,l ..- ---.-.-aA;llc+monf

- ! - - I L - 1 - - -^-A ~ L I U I I U I ~ I ~ L ~ AL L - ~ L ~ ~ -

I - -.

a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real

image of this line. The length of this image is I. The

mamification of the telescove is :

175. The heart of a man pumps 5 litres of blood through

the arteries per minute at a pressure of 150 mm of

mercury. If the density of mercury be

13.6x lo3 kg/m3and g = 10 m/s2 then the powerof

heart in watt is :

!

(1) (2)

2.35

3.0

I

(3)

1.50

173.

&

-+l

m,

rnCE (mjtqm) yq*

4 i$ 3I

3

~a-ijjfkq

I

SCO

37

176. If dimensions of critical velocity vc of a liquid flowing through a tube are expressed as [qs$1 r2], where q, p and r are the coefficient of viscosity of liquid, density of liquid and raclius of the tube respectively, then the values of x, ancl z are given by :

177. A photoelectric surface is illuminatecl successively A by monochromatic light of wavelength A and - . If 2 the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the surface of the material is :

(h = Planck's constant, c = speed of light)

178. The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of radius r. If the speed of the liquid in the tube is V, the speed of the ejection of the liquid through the holes is :

D

i I:

D

SCO

38 +

I \

179. If vectors A

A

= cosot

i

+ sinot j

A

and

ot cot r: B =cosI -t sinl ) are functions of time, L L then the value of t at wliicli they are orihogonal to .each other is : 4

180. A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 Weber/m2. The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of 30" with the direction of the field, the torque required to keep the coil in stable equilibrium will be : (1)

0.20Nm

(2)

0.24Nm

(3) 0.12N1-n (4)

0.15 Nrn

179.

a Flf%l

= cosot

;+ sinot ;TNTFTf??l

i -