II Mid Phase Fiitjee

M D F S I 5 A ,

M G F S I

_{5 A M I D P H 2 P ?}

-t .

2.

Part - A

A bov

sitting

in ec-'ing

ar constan,

"","it;?l;#tXilra,L:ttfftuL into

the

air. where

w'l the ba, fa'?

(a) Bflrn _{(b) into his huil}

1c; in aont of him _{(d) towards the left}

A ship of rc 3x107 _{kg initially at rest, is pulled by a force of 5x l04N through a distance}

of 3 m. Assuming thar se resisere&eto water is negligible, the:peed of the ship is:

(e) lJ m/s

6; eo mls --r

(c) 0.1 m/s _{(d) 5.m/s}

3' _{A body of mass 2 kg moves with an accereration of 20 ms-z . The rate of change}

of momentum in SI units is:

(a) 40kg ms-2 _{(b) l0kg ms-2}

(c) 20kg ms-z _{(d) lkg ms-z}

1 - _{In figure three bodies are shown connected to each} strings. They are being pulled with a force F on a horizontal surface- The tension p in the first

"tring i, tension _{Q in the second string is:}

other with frictionless 16 N. The F - l m

o- rnl*fuc

_l3-f

ftrqeoctfrrcry rc Gdb

_{t*ocods ofa light}

l -=

sring p'sfrng o

pdd.. te-eegqrio{r

_{iqLthe string is:,'}

ilF \a) | itrs-: _{(b) z nts-z}

- , \

' '^'i:.i{' _{-1q__*.}

7' A bloct ofs6

gary&rrhqdhrro

&hsk

bdrcq A ad B- Thcn

rcadnsF cif,btwtc: (c) 3 nrs-r

(zl Ofu;zaofo

(c) zaofo;4[g.,

(d) 2.5 rns-r

(b) 3h5 3k

(d) 6tg;6k

\

v

f-l

6 ks

8' A machine gun fires a bullet of mass 40 g with a velocity L2a0 ms-t. The _{man holding it can exef,t maximum force of} 144 N on the gun. How many bullets can be fired per second at the most?_(u)

Q-" (b) Four _{(c) Two}

(d) Three 9. An unbalanced _{force is necessary for an object to be:}

(a) at resr

(c) accelerated (b) in motion with a constant velocitv

(d) all of the preceding

1.

( a ) l 6 N _{/ h l l o N}

_(b)loN

_{L )}

(c)/rN

_(d)2N

+/

5' A 20 gram

butlet

pierces

throush

a plare

of mass

_{t tt d rb G}

_{ro rcg imide a second}

plare

of mass

2-9t a* ul{'

found that t*'o plates initiallv ; rcsr' .,oE EoE ril -

rdFiy-

_{hd tc F".nrage toss in the initial r.etcirl. of rbc}

bullet * hen it is between

_{the two pt .- A*}

_-=#

f."

_{F ,.*"in .onEanr e*en on siking rtE hdlcr}

(et75.tl

Gr2'*

- -flir_r.

(d) 50 1l

_l

i * i I I t 9-I

Plaza), Nungambakkam _{High Road,}

I I

10.

1 1 .

MDFSI5A,

MGFSIsA

-2f

Argust' 2OI I

(blHy proportional to the apptid fGE ( { I t * o w

(d) nct of inertia A gun of mass 5 8ft6 r 50 g hllet with e Elbcl

' ' o---

(a) zmls &) 20 n/s

of2lDd$ Tbddocit-v of the gun is:

(c)O2* (d) zero

12. Find acceleratim-of4 !3lE.

(a)

5J?--

_{9J ltt,YJ}

Gi s:hrJ

(d) 8 ds'

13.Newton,sfir$lawofdiodescrib€swhichofthefoltowing?

(a) energ &) work (c) inertia

The accelerari<n of a did is

a) imcrdYFqafiE blsrc

(c) rcddbtiErb

16. Find oorrect o6ion

(a) Mutual contact force betrveen A & B is 51 N ' _{(b) Mutual coutact force between} A & B is 13 N (c) Mutual contact force between B & C is 21 N (d) Mutual contact force between B & C is 13 N *

l

14. Two masses oi4 kg and 5 kq *: connected by a string passing through a frictionless pulley and are k;;; fti.iont"r, iuUr" "t 'ito*n U"io*' Tf,en acceleration

of blocks is

(Tdke g = 9'8' i" )

( a ) a 9 m | s 2 ( b ) 5 ' 4 4 m \ s 2 ( c ) 1 9 - 5 m t s 2 ( d ) 2 ' 7 2 m l s 2

15. A player takes 0.1 sec in catching a ball of mass 150 g moving with a

velocity of 20 m/s'

on-the hands of the PlaYer is:

(a) 0.3 N (b) 3 N (c) 30 N

O n e o r m o r e t h a n o n e c o r r e c t o p t i o n q u e s t i o n s

The force imParted bY the ball

(d) 300 N

- c

w n ' W ,

w n = W ,

8 kg block is 3 m/s' r 8 kg block is 5'66 m/s"

stririg between 7 kg and 8 kg is 14 N strin! between 7 kg and 8 kg is 21 N

1 s N

60 N

-)--o ' ' - '

[ T u i t o o " Ito* 1

l7- Itlark the correct statement(s) regarding friction' . (a)Friction force can be ,"ro,""""n though

the contact surface is rough' (b)Even though there is no relative motion betrveen surfaces, frictional

force may exist betwwn them' (c)Friction always acts opposite to the direction of motion

iO Static Friction is a self adjusting force

l s . T w o v e s s e l s A a n d B o f d i f f e r e n t s h a p e s h a v e t h e s a m e b a s e a r e a a n d a r e f i l l e d t o a h e i g h t , f t ' . T h e f o r c e s e x e r t e d b y w a t e r o n t h e b a s e s a r e

F

n and{ respectively and the weights of the liquids are W o & W ' resPectivelY. Then:

@) Fn> F, ( c ) F n = F ,

19. Find the correct oPtion (a) The acceleration of (b) The acceleration of (c) The Tension in the (d) The Tension in the

(b) (d)

Regional H.^d Qua.te.:l-FlU-JGG TOWERS' No'3' Fittt Lan"' (N"*t

M D F S I 5 A ,

M G F S I 5 A

_ M I D P H _ 2 P 4

-2 0 t t A u g u s t ,

2 0 1 I

Chemistry

Section

- ll

al

1 .

Art '.t-lzl t i

\ ;

(") Mt \ 4. Gmms of 'S' present in 9gg HrSOo is (a) 28 g

Part - A

Single

Answer

_euestions

If the valency

_{of a E t{ is 3, then the formula of its surphate}

is

(a) tvfsO.

_{(b) M2so4}

_{(.) M, (soo),}

How rnany ddq* can a phosphorus _{atom gain to form phosphide ion?}

( a ) I _{@ ,}

( c ) 3 A neurrrl aom loses 2 e-. The type of ion formed will be:

(b) M*t (b) 32g

(") M*

(c) a8g (c) 32g (c) 16 amu (c) 699 (c) HrPOo

(c) KCIO,

(d) M3so4

(d) 4

(d) M*

(d) 169 - (d) 88g

(d) 8e

(d) l69

( d ) l l g (d) NaOH

(d) Kclo3

5- t

on heating _{50g of caco'the amount of co, produced}

wiil be

@) a4e _{1u) I lg ( c) 22e}

Lx*

6.'12.259otKCIO,onhearingprodu-ies2.459ofKCIandsomeamounrofox1_ger.Theweighrofoxyg-engasprodrcd will be:

F, (a) 5g ft) a.8g k) 3.re (d) s.8g

?- \\ten 39of 'c'isbumr in 8g ofox;gen- lrg ofcaftsdoride b podrccd- \\rrai*i1 _{bethemassof co, prodrced} ,. .

"t _,9 of 'C'

k h *ith rtO g of or13a?

,\

GD€s

-ol

ztg

_{(d ug}

_{(d) aae}

i.

The chemicat

_{fo.*utu ll"ii"iu.}

_phosphate

_{will be}

I

(a)

caPo'

_{(b) ca.Por}

_{(") ca-.}

(Po, ).

1ay

ca(ro.,;,

':. li I oicanosrcdddb.dcrFra-,

tb ir fuD.d ril| hc

)

(.) O{

_-

O) O.r

_{(") O-t}

_{(a) o-,}

10. ll g of C c_lri3

rf

lQgdcllla

pSiG

_{4a! ofc_hoa dorib. ftb is in confiru.aiqr of}

(r)Ltd@nir

(fc'w

_-

-

--

Ol r.- of csrsqradon of mass

-

(c)Lrrdmrpq-Col

l bw of orftiplc popcil

t 1'' cflB

11m:

corsirr in tlrc raio of 3:4 ro form carbq mcroxi&. The mass of oxygren rGquircd

ro complercry

react

(a) 169 _{(b) a8g}

v7

12.'Thegram molecular mass of oxygen is

(a) 32 amu g)32g

A:. The mass number _{of .Na' in 53g of NarCO, is}

(a) 23 g _{g) a6g}

i-1.'HrSOo h* the same molecular mass as

^ (a) HCt ' _{&) HNO3}

)

l-s. The formula for potassium chlorate is

, q

L

z 3 ---t,

-r/'

MDFSI 5A, MGFSI 54 - MID PH -Z _ ? - 5 - PCBII _{2(F Aurusq ril}

Orc or rort thr .I crnc _rtr _{rpriot e[estiotr}

16. Which of the follo\r.ing tatemetrr's are true abon C0, ? )'

trZ Iaw ofconstant proponioo indicares about

(a) the sao'€ propoiion ftv- mass) of combinario of cteams ir e rf,coii:ar compound (b) the independeoct of the sourcc froo *tich thc compooad b _fgd

(c) the energl ofreacrants and producrs

(d) the indepcndeace of rhe merhod o;L- rrtich rhc compound is prqercd 18. Which ofthe follou'ing srb*ances can be ca[ed as molecule?

. % ( a ) H r O (b) H2SO1

(.) O:

_{(d) POi}

19' If a substance forms the follouing compounds. rvhat would be the ralency of that subEance?

u, (roo),

M,S

(b) 2

Section

- III

b ,T:t

h{so{

Biology

( " ) 3

t

_{(d) 4}

(\

l. _{Natural sources of air pollution are:} (a) Pesticides and fungicides (c) Buming of fuel and smoke

9

lncrease in the percentage of fauna and decrease in flora

- P a r t - A

Single answer type questions

( a ) Diseases

:.: : ': - s -e caused bu -f. r 3 l O z o n e

' _J tc) Carbon di-oxide

(b) Vehicles and industry _l (d) volcanic eruptions and forestf.,r:,':!

may, be dangerous because it enhances the percentage of: , : i P . = : ' . _ r : : . ' , : i = ' i - , : . : r j , _ - : : f . : . . : , _ : . ' : :

(b) Carbon monoxide

(d) Sulphur di-oxide and Nitrogen di-oxide

f b) Or,. seir

F

N

"i:.: a:e the chief pollutants _{(a) Sulphur di-oxide} of the atmosphere which are most likely to deplete the ozone layer? (b) carbon di-oxide

(c) Carbon monoxide '/ _{(d) Nitrogen oxides and fluorocarbons}

5 .

6 .

Excessive accumulation of organic matter in (a) Green house effect

(c) lncrease in species diversity

rvater bodies leads to: -l

(b) Decrease in species diversity (d) No effect in species diversity

7 .

The life supporting gases _{such as 02, CO2 and N2 are chiefly concentrated in the_.}

2 @) troposphere (b) exosphere (c) homospt"." (d) stratosphere

A biosphere reserve conserves and preserves

(a) wild animals (b) wild land _{(c) natural vegetation (d) allthe above}

8' The dramatic increases _{in agricultural production that have been made possible by high yield.miracle crops,, are called the} (a) biotechnical revolution

(c) green revolution

9. Approxim ately 70 percent of the earth for human use.

(a)2.s% ') _{(c) 97.5%}

(d)less than one 10. Conservation is

(a) judicious use of natural resources (c) management of natural resources

2

is covered by

( b ) 1 . s %

(b) greenhouse effect (d) bioeconomic revolution

water. of this amount, approximately _{_} p€rcent of it is suitable

(b) protection of natural resources (d) all of the above

MDFSI 5A, MCFSI

5A - MID PH -2 - P - 6 -

PCBM

20th August,

201 I

+ lo One or more thrn one ooorect optiotr qucstiotrlt

1 1- Which tftre" oftho following arc oft€n refened to as 'renewable' energt sources?

(a) Solar (b) Oil

12. Deforestation results in

A (a) Increesd soil erosion (c) extinaion of plant species

(c)Wave

(b) ftood (d) drought

(d)wind

(@ decrease in concentration of ozone (d) huge amount of CFCs in atmosphere 13. The fertilitv of the soil is reduced due to

r ^ (a) blue green algae @ soil erosion

Y/ (e) growth of single crop in the same land successively (d) ninogen fixing bacteria L4. Omrc hole means

\ - (a) thinning of ozone layer (c) hole in the stratosphere

Mathernatics

Section

-. [V

i;

Part - A

Single Answer Questions In the given figure, if /r ll/r, then c+p+1=

(a) l8oo (b) 2700

(c) 3600 (d) < 2700

l- The angle between tlre bisectors of tlre two acute angles of a right triangle is

I.

(a) 1200

The side BC of AABC is produced to L.trLC =

'

(r) lOd

In thc giwn ftrrc, AB dlAs .4),AC

(") d

(c) 620

'D'. _{The bisector of ZA meets BC in L.}

G) l lo'

(c) l20f -fu rlb 2 : 5 dAB : DB. thcn'x- =

o) 56'

(d) ld

(d) 9oo

If IABC = 500 , IACD = 1300, (d) 9oo E

&) 13so

@ nzl

I T . then

5-) In the figure, relation between x, y, z is

( i ) * + y + z = l 8 o o ( b ) * + 2 = 1 8 0 0 - y ( c ) x * z = 1 8 0 0 + y ( d ) x + y + z = 2 7 A 0

2 q ,

MDFSI

54, MGFS|SA-Dtl

_{_2 _? _ 7 _ Fm}

<,4-\

3)

7.

t*

2(F Argust, 20 | |

The angle ben _{ft ht Je r- oru*:[y}

ol'll.rr- -hs i

(") d

_{o) 4f}

_{(c) f}

ts

(d) lsoo

If.'x'isgreacrhYffclidoftrighrdcd.r'btbrlTCF-rof _{.y,,thenthevalueofx_yis}

(d lof

_{G) 3d}

tcl zf

(d) eon

Sum of exterior qlcrdethlc i,

(a) t8d

_(b)z,f

_{(c) 36d}

(d) 5400

n

llff,Yt"

liE -rH

!t r kr+

rta rtc q'tlrqrt

fr.-.d b rhc riseclqs of two pairs of inicrior

(a) sqlae _{(b) r€ctegle}

(c) rhomhs (d) prellelogram

I 10. In the gr"en figrrc, AurBc _{and AN is the bisector of /.A- If}

lB = 400 _{, lC= 30., rhco 4VL{N =}

(a) 55o

(") f

In the given figure, rays OA, OB, IBOC = 100", ICOD = x" and

G) ltoo

(d) 600

OC and OD are such that ZAOB= 56", /DOA='14", _{then the value of x" is}

( b ) 120 ( d ) 140

t .

1 ;

,.1

l 1 1 .

\

(a) 100(c) I -30

I

:'t"!1

t2.

rwd-dlda+.Hx.:-,.

In AAff. _{lA= 600, Z.B = g0o, then the triangle is}

(a) obtuse triangle

13. In the given figure, supplement of angle .x' is

In AABC, if ZABC = 600, /.ACB= 300. then (a) AC is the shortest side

(c) AB is the longest side

In the figure, _{if AB llGE llCD and GH llEF, rhen} (a) if IABH = 600, then ZGEF = l20o (b) if I.ABH = 600, then ZGEF = 600 (c) /BGE = /.ABH

(d) ZGCD = I.ABH

(b) right triangle _{(c) acute triangle (d) isosceles triangle}

(b) I l0o (d) 900

(b) BC is the lorrgest side (d) none ofthese (a) 700 (c) l80o

t4.

1 5 . I

i i

i

MDfSI 5A, MCFSIsA

_{, t -}

- MID Ptl -2 - P - 8 - PCBM

20th August' 2Ol I

I 6. If

'X' urd 'Y' are two poirs o equal sides

of AB and

AC of a AABC such

that AX = AY' theh

(a) AX = XC

(b) AY: YB

L7. In AABC, extrritr ll|.bgreaterthantwicethe lC, then

(a) AC >AB

(b) AC < AB

1 8 . I n A A B C , A + 8 = 1 2 0 0 , l B - l A = 4 0 0 , t h e n (r)AB > AC

t 9. In AArc, AC = AB, the bisector of lA meefs BC at 'E', then

(a) BE > CE

(b) BE < CE

ZO. AD,BE and

CF be the median

of AABC' then

(a) 3(AB

+BC+AC) . +(eP +BE +cF)

(c) either (a) or (b)

..-.-.,-...*

{$+tk*.fi*",,-r-*= :

';

(c) AABC is equilateral, if IBAD = 300 In an equilateral triangle

(defberc4nl in lergth

,

(4*-qd-hf

. r " , , ; J h ! _{, "}

in AABC, ZA={]f, dfi'fr,

sDl|c

lbftrirGlc

(+ AABD is isodcstiCts tirtlc

(c) AABC is isomdcs right tri.nglc

@l.c< Bc

1u) 2(AD+BE

+cF) .3(AB-rBC+CA)

(d) both (a) and (b)

(b) AB: BC

(.0 AABC isequilateral,if II,AD=450 \

(b) angular bisectors are equal in length (d) oty (a) and (b)

(b) ABDC is ismlcs righ triangle I (d) BD =:AC 2

(c) XC: YB

(c) AC: AB

(c) AB > BC

(c) BE: CE

(d) AABC is equilateral (d) none ofthese (d) BC > AC (d) none ofthese

\ :

i .

l

:

i i : j I I t

2 1 .

2 2 .

One or more than one correct option questions

If the arms of one angle a.e respeaivety parallel to the arms of another angle, then angles may be

(a) e+ral ft) complementary (c) supplementary (d) with sum 2700

ABC is a triag;c h rrhich AB=AC .nd D is arry point qr the side AB. Through D a line is drawn parallel to BC and

intersecting Aa - E- Th rlicf dfu fouoving idare t-ue '

ril 4ADE = ^/:D,il, O)ATFAE (c) DB : EC (d) None of these

Is AA4'|btbADbrc- Tb , F - . ₊ -+

_{

-t

1

' - + .

t 5 .

27.

28.

26. AABC, ADBC arc two isosceles rianglcs with same ba$ BC, 6Gn

(a) AD bisects BC

(b) ADtBc

(c) BC bisects AD

(c) QR< PR

A

(d) AD bisccts IBDC

(d) PQ is the smallest side

B I n A P Q R , lP = 5 0 0 , lQ = 1 0 0 0 , t h e n

( p ) P Q < Q R € ) P R > P Q

In the adjacent figure, ABIICE ll U, BG llFH then ( a ) x + y - - z + k ( b ) i f x = 1 2 0 0 , (c) if x = 900, then CE t FH (d) if k = 400,

then z = 600 then z = 400

*******

A.yg.!:r' 20]r, E r .

t-F

h

o. l) r.. l i . c I 6 , A . C ' D 2 . c I ' A 7 . D 8 . D r . A l 2 . A r ' l J . \ -i 7 . A , l l , c , D l 8 ' B , c z . \ ' ' 7 . C 1 2 . B t?. A*a 4 . 8 9.C l 4 . B ?.'-\ r9.A,D .

-.1-ChemistrY

3 . 8 4 ' B 5 ' C 8 . c 9 ' C l 0 ' B r l . A l 4 ' c 1 5 ' D t8. A,B,C 19. A, B

\

: _{. - -..'.r.=,-'i*+-:-;==;v'i**-'1:ti:} :"" : :'' ! n

_'.'

b , A 1 1 . A . c , D Z.D 3.D. ' i ,, .,1? 9 ' D i.D "q.c l2.A,B,c'D ll'll,c l4'A'B't)

Mathematics

5 B r 0 . D l . c 2 ' B o , o ? ' B I l . c l 2 " t l l 6 . c ' l ? ' A 2 l . A . c 2 2 ' A , B ' C jo.e,e.l 2?.A,B,c't)

A\lr,

3 . D ! . 8 . C l 3 . B ' 1 8 ; C i l 2l.A,c 28.A,C,D 4 . D 5 . C 9.B l0.C t 4 . B l 5 . B t 9 . B 2 0 . D 24.A,8,C 25.A,8.C'D

l-\

t )

11

, . l . B '';, 6 1j I l . A t 6 . A , ( : n@