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1
Max
. TIJ Tle
: 3
2 hrs.
M
ax.Ma
rks :
200
PAR
TI. P
HYS
ICS
.
1. A meta
l
r
od
oflen
gth
L
I
cla
mped
at
a
dl t
ance
L
/ 4 om
on
e
e
nd
It I eet
In to l
ong itu
dinal v
ibrati
on by
pu
lling .
on l
ength
w le w
ith a
r in
cover
cloth
p iece
. T he
wave
length
for fu
ndam
en tal
m od
e of v i
brat io
n will b
e
.(a)
L/4
b)
3L/4 (c)
L
(d)
l
./2
2.A
t
h inequl
conv
n len
hu
focal
lengt
h
10
em
, re f
ractive
bidex
15
. O
ne ofl te
faca I
now
liver
ed. an
d
I
t I H
en
tha
t
an ob
ject
plac
ed at
dletan
ce U
I
n on
t
of It,
hu
l te Im
age co
incidi
ng ~
ob-
j
ec t. T
heval
ueof
U
I
(a)
20
em
b
)
1
0em
5 em .
.
d) 20 em
S.
1x
ra
le ton
e
ach ofrel
tance
R .
and
two n
leto
n e
ach of
reelet
ance
r ar
e
con
nected
In the n
etwor
k h
ownbe
low.
T
be
e
quiva
lent
ral
taoce
b
etwee
n
A
a
nd 8 I
a) 3R
+
r
c)
2R/3
b) 6R
+2r
Rr
d)3+s
4. A circu
lar lo
op
of radlu
r
c
arrlee
a
cur
rent
1.
It
I
equivalent
to
a magnetic
dl
pole
of
ma
gneti
c m
oment
(a)
nr
2
1 b)
i
r
(c) 2
nir
d) _ _
-r2
5
Power
factor
In
eeri
e ft L
C
r
aonan
t
circu
it I
(a) 0
.5
(b)
0.
707
(c) 1
d)
zero
6 .
In
the n
etw or
k give
n below
all
the
five
C
Jtpac
lton hav
e th
e me
capa
ci tanc
e
C
uc
h
. Th
en th
e capac
itance
betw
een t
he
term
inal A
and 8
will
b
e
I
1]
u
I
I
I
c
b)
5 c
(c
)
C
d ) ~ C
a
)-
5
7
The tati
onary
w
ave
produ
ced I
n a
etretch
ed
trln
g i gi
ven
by .
Y
=
A
C
os
2
X
)
in (
2
T7rt )
Th
e corr
eepon
d lng p
rogree
log w
ave bu
a
n
am
plitu
de e
qual
to
.a
)
N
b)
A
(c)
2A
(d)
Al fl
8 A
elnu
eoldal
a.c. f
low
In an
nduct
or
u eho
wnIn
the gra
ph be
low :-
.
Then
the p d
. a
c..Oe
the In
ducto
r
I
a
m a
xim um
at
th e. ln
taot
Ind ic
a ted on
the
graph
by
the
p
o ~
Ip
/
\
\
:h
J
I
a)S
b)P
c)R
d
)T
9 .
W hic
h of t
he fo
llowin
g rela
tione
be
tween
w
eber,
Hcon
d, amp
ere and
vo l
t Je
correc
t?
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(
a) w
eber/sec
ond =
volt
(b)
web e
r
x
secon
d =
vol
t
c)
s e c o
n d
=
ampe
re
(d) w
eber x
seco
nd =
amp
ere
1
0. A
cl
n:ular
coil
of
r
adlu
R carr
ie a
cu
rrent
fn f
t.
T
he
ma
gneti
c field
alo
ng
Itaaxla
d e c r e a ~
aa
we
moveaw ay &om
Ita ce
ntre.
Th
e apac
e rate
offal
l of
tbla
fie ld
I con
e
t
ant
at d
istanc e
eq
ual
t
o
a)
2 R
b) R
c)
3 R
d )
R/2
11 .
A .oap
film
is forme
d
on a w
ireri
ng
he ld
vert
ic lly
and allow
ed to
dr
ain .
A
dlff
u.e s
ource
of whi
le ligh
t Ia ob
served
by re
flectio
n In th
e
oap 111
m
.
In
th J
conn
ectio
n I
ndica
te the
w ro
ng s
tate
ment
:
a}
The c
ol
ours
are
d
ue
to
refrac
tion
of
lig
h t by
the
wed g e
-shape
d
f
ilm
b) T
he
thickne
ss
of the film
i
s of
the
same
orde
r as t
he
w
avelen
gth of
vis
i
b le
U
ght
c) T
he ba
nd
of
colour
s mo
ve d
own
w
ards
8s th
e
f i lm
dra ins
.
{d ) Just
be
fo re
the
film
breaks
, it may
a p
pear
bla
ck
at
the
top.
1
2 The
ap
ec lfic
cha
rgeo
f an
electr
on
I
a) 57
x 10
7
Co
ulo
mb/kg
(b )1.
76 x 1
0
11
C ou
lomb/k
g
c}
16
x 10-
19
Coul
omb/ gm
d)
1 6
x
10
-
19
Co
ulomb.
1
3
.
Vec
ton 3t
- i
f + t
and i f
+ t
+ n
it
w
ill be
pap
endtc
ular
to ea
ch o the
r If
a
}
m
8
b
) m
= 6
c}
m
3
d) m
= 1.
14. N
ewton
-aeco
nd Ia
th
eunitof
a
)
energy
b)
m
oment
um
c)
angu
lar mom
entum
(d)
veloci
ty.
15
. In
t
he
S.l .sys
tem th
e
unit of
e
net'gy
is
a)
elect
ron-vo
lt b)
jo ule
c)
calor
ie
(d
) erg.
16
. Two
r
ods of the
MJ
De l
ength
l b
ut
croe
..ectJo
n Jnthe
1'8tJo
Sa l
SA =
4
are
Joine
d at
a
heate
r H
and ahea
ts ink
S
u
ahow
n . T
he rate
of h
eat
flo w to
S
le
f
ound to
be fto . f
p
oi
nts o
f
A
and
B et
dla
tance
e
lJ 3
each
& om H
are
now
Joined
by
a
conductor
C
of length
L
and
the cr
oee-sect
lon
of C
ls a
uch
that
3c
=2S /
A
, the
n
ew rate
of hea
tflo
w to
S w i
ll
be see f
igure)
6
a)
5
o
c)
o
c
b) 1
3 o
12
7
d ) 5 o
17 M
ot
of the
com
ets
m ovin
g ro
undth
e
un hav
e o
rbit
of
th
eah
ape o
f
a)
a
h y p et
bo la
(b) a p
arabol
a
(c)
an
elon
gated e llip
se
d
)
a
cir
cle.
18
K ir
choff'
laws
are a
pplic
able to
(a)
A.C only
b)
D.C
on
ly
c} B
oth a} and
(b )
(
d ) ln
termitt
ant c
urrent
s only
.
19. I
n the
g iven
diag
ram, a
cur
ren t o
f 0 .5
A
c
auH
d
to
paee
tJu
ougb
a
Nlt
or
sho
wn.
Theem
f of
the
cell
Ia2
V, and
Itt
Inter
nal rn l
stnc
eIs
zero.
Indi
cate th
e
w
rong
e
tatement
a05A
J
~
~ ~
b
~ V
(a)
the
p .d. b
e t ween
a
an
d
c
is
1.0
V
(b) th e p .db e t ween a
and b
is
1 .0
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c)
b
is
at a higher pot
ential than c
d) is at a
h ig her po
t
ent
ia lthan c .
1
R
2
20
.
In LCR
circuit If L
C >
4
L
2
,
the
ct
rcult
Is
a )
osc illa tory
b ) dead beat
c)
cri
ti
cally damped
d )
none o f th e
above .
21 . to
UN a tranltor
u an ampl i
f ier
a)
theemitter-ba
sej
u
nction is
fo rward bias
ed
and
coUe
ctor-base
junction is
rev erse
bi
ased
b) both
junc
tions are
reversebiased
c) both ju
nctions are f
o rward
i ~ d
d) it does
not matter how
the transis
to r is b i
ased,
1t
always work s
as
an amplifier.
22.
An ofclllo
Kope meuure
e
the
a)
Peak
t
peak valu
e of AC volta
ge
b) RMS value
of A
C
vo ltage
c)
D.C. value of
a
vol
tage
d) N
one of
the above .
23. De B
roglie wa
velength
A I propor-
tlo
aal to
a ) i fo r
p
hotons and liE fo r
parti
cles
b)
li
E for pho
tons and for
parti
cles
c) liE
for
both photons
a
nd part
icles in
m
o-
t
ion
d)
or bothphotons a
ndpartic
le s.
tt. A
gtwn H
llllcoaduct
or
hae
elec
tron
cooc:
ent ra t loa
of
8
x 1
0
13
pa
cm
3
eDd a
bole
c:oncentra
tlon of 5
If
10
12
per em
3
What I
th e ra
tttvttyof thl N
mple tf the
e l
ec t ron
mobility
I 23,000 cm
2
/ V an d
h
oi.
m
obility l
100
cm
2
I V
?
a)
3 .395
x 10
-
4
ohm x em
b)
3 .3
95ohm
x em
c)
5
x
10 -
6
ohm x
em
d)
45
x
10 -
6
ohm
x
em .
25
.
What
angle
a to
the
ho.Uoa
w ill
b
e
f
ormed by
the urfac
a of
ln tiM
tank
of a motor
car moving
horbontal
ly
with
a
c
ontant
ac
caluatloa of
2
.44 m /
2
?
a) 9
= 14
b ) 9 =
45
c)
e
=
3
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(b) Einsteins theory of relativity (d) Newtons corpusc
ul
ar theory.
(c) Huygen s wave theory
(Directions) QS1 to 60
consists of
two
statements,
one labelled the Assertion (A)
and
the other
labelled
the
Reason (R)'.
amine these
statements carefully ancl
de
clde If
the statements Assertion (A) and the
Rea.on
(R) are Individually
true
and f/
a,
1
whether
the
reason ls a correct explanation o
the
a.sertlon.
Select your
to
these questions from
the codes
given below
(a)
Both
A
and
Rare
true and
R
is the
cor-
(c) A
is
true
but
R Je
faiN
rect explanation
of A (d) A
l
false
but
R
true
(b) Both A and R are true but R is
not
a
correct explanation of A
~ o e ~ n
51
. A
pulsar is
a
source
of radio
waves that varies in
A pulsar is a rotati
ng neutron star
intensity at
n:?gUlar
intervals
(a) (b) (c) (d)
52. Activity of tfl undecayed radioactive nuclei o{ Activity is proportional to half life
half life 50 days
is equal
to that of 1.2x
ul
number
of
undecayed
nuclei of
same other
material with half life
60
daYs.
(a) (b) (c) (d)
53.
A laser
beam
of
0.2
watt power can drill holes The frequency of laser light
through a metal
sheet whereas
a
1000
watt
torch light
cannot
(a). (b} {c) (d}
54. In a radioactive disintegration electron
is
Electrons are always
present
inside nucleus
emitted
by
the
nudeus
(a) (b) (c) (d)
55
.
We
always
see
the
same
face o the
moon
(a)
b)
c)
The period o rotation of the
moon
about its am
and its period
of
revolution about
the
earth
me
equal
d)
56
.
ln
an ele tri
bulb
, the filament
is
in the form . A coiled coil filament occupies less
space
Md
of a coiled coil iS therefore,
not
cooled significantly by the
convection currents in
the bulb
57
. Wood is a
bad
conductor of electricity
(a)
(b)
(c)
58. A sail
boat cannot
be propelled
by
air blown
at
the
sail from
a
ig fan
attached
to the
boat
(a}
(b
c)
59. Cooling inside a refrigerator
is not
proper
when a thick layer of ice deposits on
the
freezer
~
(d)
Wood
has
a large
number of
free electrons
(
d
Action
of the air
from
the
fan and reaction
of
the sail, both act on
the
boat
(d)
lee is a bad
conductor
of heat
(d)
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60
. Even
a sm
all bird
hit ting
a flyin
g aero
plane
can
ca
use he
avy da
mageto
it
a)
b)
c)
Th
e
b
ird im
parts a
la
rge im pu
lse and
a la
rge
fo
rcedu
ring th
e short
t im e of
i
m pact
d
)
PAR
T
II
.
CHEM
IST
RY
1
.
B
ohr
mod
el of
the etru
cture
of a
tom le
no
t In
confo
rmity
with
(a)He isenberg s
un
ce
rtain ty princip le
b) Hun
d s rule
o fm a
x im um
m ult
iplicity
c
)A u
lbau p
rincip l
e
(d
) Paul
is exclu
sion p
rincipl
e
2 .
The
ft
nt loalza
tion
en
ergy of
hyd
rogen
le 2
.17
9
x
1
0 -
II J
T
he e
econc
l Ion i
za
tion
energ
y of hel
iumato
mw il
l
b
e
a)
8 .7
16 X w -
18
J
b
) 4
.
35
8 X
10 -
18
J
(c) 5.45
x
10-
17
J
d) 1.0
9 > 10
-
18
J
3 .
The epec
trum
o
f He may
be e
xpec
ted
to
b
e el
mllar to
that
of
a) H
b)u +
c) He+
d)
Na.
4
. Am
ong
the fo
llowi
ng e
pecla.
the
one
tha
t d o a
no
t
exl
et
I
a)
[S
iC (;]
2
-
b) [C
CI(;)
2
-
. c
) [G eC
I ;]
2
-
d )[S
nCI6]
2
-.
5 . The
conjugate acid
of
N H 2-
ie
(a)N
3
-
(b
)
>
N
H
2
-
(c) NH3
.
d )
NH t
6 . Tr
anelt l
on
met
als a
re ofte
n param
ag
Mtlc
o
wing to
th
e prae
nce of
a) vale
ncy el
ectron
s in th
e out
er two
ele c-
tr ons s
hells
{b
) unpa
ired e le
ctr ons
in the
ir atom
s
c
) vacant
o rbi
talsin
the n t
h orbit
d) el
ectron
s in o
rb itals
o
f the
n-1)
o rbi
t.
7.
H
igh
Pf
ftun
and
hig
h tem
pent
un w ill
be favo
urable
con
dition
e f
ora
high
equ
i
l ib
rium
yie
ld
n
th
e rea
ction
a)
2C
i27
(g
)
-
- C ~
g
+
70
M) +
126
.8 kcal
b
)
Nz(g) +
3 Hz(
g)
2
N
H3(g}
+
22
.08
kcal
c)
Cl2
(g ) + 20z(g
)
200z
{g)
- 49
.4 kc
al
d)
2NF3(g) N2(g)
+
3F2(g -
5 4 .4kcal
8. A
mong
the o
xy-ac
lda o
f chlo
rine,
the
etrong
eet ox
idizin
g ag
ent
l
e
a) HCI0
4
(b
)
HC
l03
c)
HCI }z
d
)HCI
O
9 .
When
dr
y e
ilv
er
chl
oride
ie
fused
w
ith
s
odium
c
arb
onat
e
,
ellv
er
ie
obta
ined
(a) f
ree m e
tal
(
b)
gzC
z
c)
gz
O
(d)
A
gzC0
3
1
0
.
W hich
o
ne o
f t
he foll
ow ing
te t ra
chlo
rid
es do
ee not
un
dergo
hydro
lyelt
a)
S
nC4
b
)
Ge
C4
cl
SiC
4
d) c c ~
1
1. The
unit
of dipo
lem
ome
nt le
a) cur
ie
b)
d
ebye
c) f
araday
d)
't'\O
ne
~
12.
Am
ong t
he fo l l
ow ing
a
clde
, th
e on
e
that can
act
a e
both
an
oxidizing
agent
and a
reduc
ing a
gent ia
a) H
NOz
b
)H
CI04
c)
HN03
d) H
2S04.
13. Th
e 0
8ruot
ic preau
re
of a dilut
e eo
lu-
tlo
n lnc
reue.
w
hen
a
)m o
re of s
olu te i
s adde
d
(b
) m or
e of so
lven t is
added
c
) tem pe
ratu re
is incr
eased
(d)
an
y
one
of
the c
hange
is
mad
e.
1
4. Wh
ich
o f
the f
ollowi
ng
stat
emen
t.
a
bout boron
h ali
des
I WRO
NG?
a)
T
hey fo
rm tet
rahedr
a l m ol
ecu les
(b)
The
y react
wit h eth
ers
to fo
rm add
ition
compo
unds
c
)
T
hey a
ll hydr
oly se i
n w
ater
(d
) T hey
are
a
ll stron
g Lewis
acids
.
1
5. Th
e A 2
Ssc
olloi
d
w
ill be
m
oat rucl
lly
coagulated
by
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a} MgC
I2
b)
AJCI3
c
)Na2S
04
d) N
a3P04
16
.
T
he
lO
} In a
.olutJ
on Js
1 x 10
8
The
pHof
thes
olutio
n is
a) 1
0
.
0
b )
8 .0
c)
6.0
d) 4
.0.
17
. Equ
al we
ights of
hy
droge
n
a
nd me
th
an
e are
m
ixed n
a
n
em
pty
c ontain
er
at
25
C.
The
fraet
ion
ofth
e total
pre
ssure
e
xerted
by
hydr
ogen is
Is
42 k
J, th
e enth
alpy
offor
matio
n of
Ca
COs
(s) is
a
) -288
kJ
b)
+ 202kJ
c)-2
02 k
J
d)
-42
kJ
.
22
. Acid
ic hydr
ogen Is
pres
ent n
a)
ar
enes
{b ) ethyr;e
c)
e
thene
d
) ethan
e .
23
.
n
th
e seriesof reactions
NH
CH3
. CO
OH
~
7
~
.
I
H eat
Pz
0
5
A
8
--+
C
18.
He
at of
neut
ra liza
tion of
HC
I
by
N
aOH
Is
13.
7
kca
f pe
r eq
uivale
nt
, and
by
NH40
H is 1
2.27
kca l. Th
e
heatof di
sso
elatlo
n of N
H40
H is
a)
-2
5 .97 kc
al
b)
.97 k
cal
c) - 1.4
3kca
l
d)
1.
43 kc
al .
19. T
hat th
e
c
onven
tiona
l
repre
untat
ion
of
o
x y g en
mo
lecule
:
:
:
:
Is
wr
ongI
s sugg
ested
by
the
fact
that
a)
oxygen
is
a colourless
gas
b)
oxyg
en ato
ms jo
in to
orrn
th
e tria
tomic
o
zone
molecu
le
c)
ox
ygen is
param
agnet
ic
d) oxy
gen
i
s
h
ighly
reactiv
e.
20.
The a
lkane
with
t
he ca
rbon ch
ain
c
C
-
C could
not bena
med
I
c
a)
2-
meth
yl iso
butane
b)
neope
ntane
c)
2, 2
-
dim
ethyl
propan
e
d) tetr
arneth
yl
meth
ane.
21
. G
iven th
e
e
nthal
py
of for
matio
n o
f
C
02 g)
Is
-
94
.0 kJ
,
of
Ca
O (s
) Is -1
52
kJ
, an
d the ent
halpy
of
there
ac t io
n
CaC03(s)
CaO(s)
+
C02(g)
the
end
pr
oduct
C Is
a) CH
4
(
b }
a
cetoni
trile
c)
C H 3
0H
d) me
thyl c
yanate
.
24
.
Dry distil
lation
of
a
m bc t
ure
o
f t
he ca
l.
cium
salts
of
a
cetic
ac
id an
d p
ropion
ic
acid
w ll
l yiel
d
a) m
ethyl e
thyl
ke
tone
b )
a
cetic a
cid
c)aceto
ne
I
d)
aceta
ldehy
de .
25 .
Amo
ng th
e fo ll
owin g
comp
ound
s, tbt
I
.
on
e tha
t DO
ES N
OT d
issol
ve In
cone.
H
2S04
eve
n
o
n warm
ing Is
a)
aniline
b)
benz
ene
c)
he
xane
d)
ethyle
ne .
26. A
nucle
ophll l
c
r
eagen
t I
s
a) C
02
b)
BF3
c) dAJCI
d)
N
H3.
27 .
Lu
cas rea
gent
con
sists of
a)
am .
C
u Cl
b) co
ne . H C
l +a
nhydro
us ZnC
iz
c)
N
aNOz
+ dil HC
l
d
)acidi
fied KM
n04.
2
8 . Na
tural
rub
ber Is v
ulcan
ized by
h
eat
ing
t w
ith
a
) carb
on disu
lphide
b) su
lphur.
c)
car
bon bl
ack
d ) z
inc oxi
de .
29.
Can
nlzaro
s reac
tion
Is giv
enby
a)
benzal
dehyd
e
b)
e t h y
c e t l
e h y d e
c)
formal
dehyd
e d
) all o
fthe a
bove.
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45.
The
non
nal
lty
of
co
ne.
H C I
u s
ed In
the
la
bora
tor
y
I
(
a) lO
N
b)8
N
c
) 4 N
(d
) 2 N
.
46
.
Wh
ich
of
th
e
fo ll
o w i
n g
w ill
have
the
le
at
hW
ldr
e d
rota
tion
ab
out
th
eca
rbo
n
carbon
bond
a
)Eth
yne
b) Eth
ene
c) Eth a
ne
(d)
Hex
achl
oroe
than
e .
47. U
nit
s
for
th
e
rate
co
nsta
nt ,k,
o
f the
ze
ro or
der
r
atee
qua
tion
ar
e
a} L
2
m
ol-
2
se
c
1
{b)
L
mo
l -
1
s
ec
1
c)sec
-
1
(d
)mo
lL
lse
1
.
48.
Pro
tein
s ar
e c har
act
eriz
ed
by
the
l
ink
a
ge
0
I
I
I
(a)
-
H -
N
I
N
0
I
II
(c
-
C-
N
-
1
b)
H
C =
N
0
H
II
I
(d ) -
C
-
N
-.
49 . A
mo
ng t
he
fol
low
ing
eu
lph
ldes,
the
o
ne t
hat
do
es
no
t d
l
..
lve
In d
il
H
NO
s
(a)
Cd
S
(b) C
uS
{c )
PbS
d
) Hg
S.
5
0.
Wh
ich o
f th
e
fo l
low
in g lo
ne
I
n
ot
le
o
elec
tro
n
lc w
ith
th
e
o
ther
t
hre
e
?
a) co
l
b)
N03
-
c
)so}
-
d) so
i.
(D i
rec
tion
s)
QSJ
to
6 con
sist
s
o
f two
st
atem
en
ts,
on
el
abe
lled
th
e As
sert
ion
(A)
an
d th
e oth
erlab
elle
d
th
e R e
aso
n (R
) . E
xam
ine
t
hese
stat
em
ents
car
efu l
ly c
md cf
e
clde
f
t
he s
tate
me
nts A
sser
tion
{
and
t
he Re
aso
n (R
) ar
e In
divi
dua
lly tr
ue
cmd
feo
11
1het
her
th
e
re
aso
n
Is a
co
...-e
ct exp
lana
tion
of
the
asse
rtio
n
.
Se
lect
yo
urC
lftSU
iers
to
thu
e q
uut
lon
s ro
m
the
cod
es give
n
bel
111
a}
Both
A
and R
ar
e
t
rue a
nd R
is th
ec
orre
ct expl
anat
ion
of A
(b
)Bo
th A
and
Ra
retr
ue b
u t R
is no
t a c
orre
ct ex
plan
atio
n of
A
c) A
is true
b
ut Ri
s f ls
e
(d
)A
is
f lse
bu
t R
is
tru
e
Asse
rtio
n
51
. Bo
th 1
2
go c
arbo
n
a
nd 27g
of
a
lum
in ium
will ha v
e 6
. 12x
1cP
a to
m s
a
)
b
{c)
52 .
S uc
rose
is
sw
eet
est
in ta s
te
w
~
53. Po
tass
ium
cann
ot
beo
btain
ed b
y th
e ele
ctrol
y
sis o
ffus
ed K
CI
i
nCa
Cl2 ,
mel
ts
a) (
b}
{c
)
54.
El
e
ctro
n re
eje
cted
f ro m
a c
e rta
in m
etal
whe
n
ei
ther
b lue
or viole
t lig
ht st
rikes
th e
met
al su
r
f
ee . H
ow e
ver
o nly
viol
et li
ght c
ause
ele
ctro
n
eje
ctio
nfro
ma
seco
nd m
eta
l
Rea
son
Gra
m
atom
ic
mas
s
of
an
ele
me
nt con
talm
Av
oga
dro n
um
b er o
f a t
om s
d
)
Sucr
ose
is
co
nve
rte d
by
the
enzy
m e
inv
ertas
e
present In living systems to
gl
u co se an
d
f
ruc
tos
e
d)
Me
tallic
po
ta ssi
um
isso
luble
in
the
melt
m
ol
te n
Ca
CI2 l
an
d
he
nce
the
cell
for
ele
ctrol
ysis
g
ets sh
ort
circu
ited
d
T
he e
lectr
ons
in th
e
fir
st
m
etal
re q
uire
less
en
erg
yfo
reje
ction
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{a)
b)
c)
55. Cyclobutane is less stable than cyclopentane
a} b) c)
56. Benzoyl chloride
is used
for
the
preparation of
derivative
of
tertiary
amines
~
57. In formaldehyde, all the four atoms are in the
samep\ane
~ C : O
r
a) b)
c)
58. A spectral lin will
be
seen fot: a 2px - 2py
transition
a}
b)
c)
59. lt is very difficult
to
subject vinyl chloride
to
nu
cleophilic substitution
as compared to
ethyl
chloride
a}
b)
c)
50
.
The
configuration
of boron atom
cannot
be
ls22s3
a)
b)
c)
d)
The bond angles in cyclobutane and cyclopen
tane are 90
and
108
, respectively
d
It
forms solid benzoyl derivatives
d)
The
carbon
atom
in formaldehyde is
f
hy
bridized
{d)
Energy
is
released in
the
form
of
wave
of
ligh
when the
electron
drops
from 2px to 2Py orbita
d)
The
vinyl
group
is electron donating in viny
chloride
d)
Hund
's rule
demands
that
the
configuratiQJ
should display
maximum
multiplicity
d)
P RT Ill.
BIOLOGY
l.
The
cell bodies of
the motor
neurons
an located In the spinal cord In
(a) intermediolateral cell
column
(b) dorsal
root
ganglia
c) dorsal hom (gray matter}
(d) ventral
hom
(gray matter}.
2. The developing embryo Is a hollow
sphere of
cells
one cell thick during
the
tage
(a) cleavage (b) po ar
body
c)
gastrula (d) blastula.
3. A hog breeder would use a
backcross
to
(a) determine
if
a particular
hog is
genotypi
cally
pure
c)
eliminate
chances
of congenital malforma
tions
c)
maintain a
pure
line
of
desirable traits
(d) produce a bigger and healthier strain.
4.
Characteristics
which
are
common
tc
the
Arthropod, Mollusk, Echinoderm
and Chordate
lines
are a an)
(a) segmentation
and
a coelom
a}
endoskeleton and a coelom
(c)
compound eye and
segmentation
(d) coelom and a parietal
eye
.
5. Mesoderm, one
of
the germ layers, gives
rise to a group of structures
In
animals.
Which group Includes structures
of
ex-
clusively mesodermal
origin ?
a}
skin, brain.
bladder
, vagina
(b) muscle,
outer
layer of digestive tract,
carti-
lage, bone
(c) bone , lens of
the
eye;
pars
distalis, gall
bladder
(d) trachea, lungs, stomach skin.
6. Characteristics of epithelial tissues may
include
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(a) absorption (b) secretion
(c) protection (d) all of the above.
7. The contractile vacuole of protozoa
functions
to
a) temove surpluswater
(b) seetete proteins
c) regulate the
pH
of the internal milieu
(d) digest food materials.
8 .
A mink breeder
finds
that 50 of the
offspring are aa. What genotype were
their parents
?
a)AAxaa b)AaxAa
c)
aa x
aa
(d ) Aa x aa .
9. The
primitive
condition of the cyclosto-
mate is
indicated
by
their
(a) asexual reproduction
(b) jawless
mouth
c) possession of scales
(d) toothless jaws
10
.
The
vital centers
for control of heart
r,.te, respiratory rate,
and
blood ptes
sure are located
In
the
(a) cerebellum (b) medulla
c)
pons (d) midbrain.
11. The
stimulus
that induces migration in
animals
Is
(a) chemotrophic (b) hydroperiodic
c)
geotrophic (d) photoperiodic.
12. All
of
the
following
may
be
considered
as secondary sex
characteristics of
the
male
EXCEPT
(a) increase in sex drive
b) external genitalia
(c) pattern of hair and
beard
growth
(d) development of a
deeper
voice.
13.
The
reflex arc
is of utmost importance
to human beings. Which of the follow
ing is NOT a component
of
the teflex
arc?
(a) synapse (b) medulla
c) ventral hom cell (effector)
(d) dendrite (receptor)
14.
Filtration in the kidneys results
mainly
&om
(a) blood pressure (b) reabsorp
ti
on
(c) blood flow (
mete
rs/sec.).
(d) osmotic phenomenon.
15.
Which
of the
following
structures are
NOT considered modlftcations
of
the
cell
membrane
?
(a ) desmosomes
(b) terminal bars
(c) basement membrane
(d) microvilli.
16.
An
aggregation
of
nerve cell
bodies In
side the
CNS
central nervous system) Is
typically called a
(a) colony
(c) clone
(b) ni SSI zone
(d) nucleus.
17.
The
most
numerous
leukocytes are
the
(a ) eosinophils (b) monocytes
(c) lymphocytes (d) neutrophils.
18. Administration of which of the follow
ing compound (s) Increases clotting
time
(a) dicumarol (b) aspirin
(c) heparin (d) all of the above.
19.
In
ant lions the gene
for
dull teeth is
dominant D.
The
recessive
gene
d pro
duces
sharp
teeth. Another geneT
, when
homozygous,
produces
dark-brown
coats. Its allele
t , when
homozygous,
produces
albino
coats
.
The
heterozygote
Tt
Is
chocolate colored
. I f a chocolate
colored, dull-toothed male whose father
was
sharp toothed Is mated to a
choco
late, sharp-toothed female, what
Is
the
probability
that an albino, sharp-toothed
offspring
will be produced ?
a
)
8/16 (b) 12/16
c)
4/16 (d}2/16.
20. Blood-sucking
Insects
usually carry
parasites
ln their
(a) lungs (b) blood
(c) salivary glands (d) tentacles.
21. Rh-related hemolytic n ~ m i
of
the
newborn erythroblastosis
foetalis)
may
result when the
(a) mother is Rh negative and the foetus
is
Rh
positive
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(c)
achro
m atic
d) ap o
ch rom
a
t
ic .
S6
.
rn a
n au
toacci
dent
the
driv
er
su
ffers
comp
lete se
ction
ing
of
sever
al
an
terior
(ven
tral)
root
.of spin
al
n e n ~ e s W
hat
w
ould be
th
ere
sult of su
ch a
les
ion t
o
the
regio
ns
suppll
ecl by th
ose sp
inal
nerv
es?
a)
loss o fsensation
b) l
oss of s
ensati
on
a
nd
m o to
r activi
ty
(c
) loss o
f tem p
erature
an
d p
ain se
nsation
d) loss
o f m o
tor acti
vity.
37
. Theplas
ma m
emb
rane
of plant
anc
l
a
nima
l
ce
lls
a) m
ay not
bes
een
by any
mi
crosco
pe
b)
contai
ns two
la yers
o
f lipi
d betw
een la
yers
of pr
ote in
(c)
is
ot
se
le
ctive ly p erm eable .
d) can
only be
visu
3lized
with th
e a id of
the
ele
ctron
m ic ros
cope.
38
.
follic
le sti
mulat
ing
h
OI'IbO
ne Is
to
estro
ge
n u lu t
e in iz i
ng h
ormo
ne
Is
to
a) vas
opress
in
b) te
sto ste
rone
c)
p
roges
te rone
{d)
and
rogen
.
39 . N
itroge
n com
prises
78
per
cent of
the
a
tmosp
here;
the
sourc
eof
th
is a
tmos
pheric nitrogen
In
clue
to
a)
d en itri
fication
b
yba
cteria
in the
soil
b) c
ombus
tionof
wo
od
and
f
ossil
fue
ls
(c)
volc
anic ac
tivity
d) al
l o fth e
ab o v
e .
Use
the
fo
llowi
ngd i
agram
to C
lf lSUie
r
qua
tion
40
-
42
P
Intr
apleur
al
~ 1 -
P .
ln tra -
alvaol
ar
40.
Durin
gin
spirat
ion, in
tra-alv
eolar
p
res-
sur (
Pe
lv
)
a ) equa
ls intr
apieur
alpres
sure
b ) equ
alsatm
osph
ericpr
essure
(c)
transie
ntly
goes be
lo w in
traple
ural pres
-
su
re
d)
tran
siently
go
es ab ov e
atmo
spheric
pres
su
re .
41.T
he alve
olar ve
ntilat
ion
perm
inut
e re
fen
to
the amo
unt o
f
esh
a
irwhich
reach
es
the alv
eoli o
f th
elu
ngs
pe
r m
in
ute.
Alveo
lar v
entila
tion
p
r min
ute
eq
uals
the
a)
tid
a
l
volum
e an
atom ic
dead
s
pace )
x
f
requen
cy of b
reathi
ng
b)
tidal v
olum e x
fr eq
uency
of brea
thing
(c)
n to
ic
deadspace
x
frequ en cy
of
breath
ing
d
) phy
siologi
c
dea
d sp
ace x
f
requen
cy of
bre.ath
in g.
4
2.
The
dr
iving
pres
sure
L\P)
In bre
th ln
g
wh
ich
ca
uses
air to
f low
Intothe
lu
ngs
Js
a
) atm o
spheri
c pre s
sure m
inus
the in t
ra
-a
l
veo
larpre
ssure
b) the intraple ura l pressure Ppl)
(c)
the in
traple u
ra l pr
essure
minus
the in
tra
alv e
olarpr
essure
d)
the i
ntra-al
veo lar
in tr a
pulmo
nary)
pres
sure P
alv).
Gene
tic r t
l ~ are
pr
obob l
l l ty
rati
o.. U
for
exam
ple, w
e mate
B
= blac
k
do
m i-
na
nt;
b
=
gr
ay
receu
lve) two
f1
U6b
lockCOUI
Bb)
and 4
oJ
1-prln
g t r
p
roduc
ed, th
e r
atio o
f
3
bla
ckan
d l gr y
should
be
possible
H ow ever,
what
are
th
ec
hance
s
of
a
ll blac
k and
all groy
te
rs?
43.
In
ord
er
fo
r
It
to
be
dete
rmine
d
whet
her th
ephen
otype
fs
het
erozyg
ous
or
hom
ozyg
ous
y
ou
wou
ld
c
ross
witha
d
omin
ant p
heno
type o
f t
he ab
ove
an
anim
al
wit
h
a
geno
type
a)bb
b)
B b
c) BB
{d )none
of th
e abo
ve
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44. To produce all black cows
our chances
are
a) 9/16
c) 3/4
b) 1/4
d
) 81/256.
45. To produce all
gray
c o w t ~
our
chances
are
a) 9/16
c)
1/256
b) 3/4
d)
81/256.
The
following
graph Illustrates
several
phenomena
that
develop
while
a
mus
cle Is being
repetitively
6tlmulated
:
Match
the numbered
area of
the
graph
with the appropriate lettaed phenome-
non.
46. (1) ---------- {a) Treppe or staircase
phenomenon
.47. 2) ---------- b) Fatigue
48. 3)--------------- c) Physiological con
tracture.
49. _______
gtva
orlgta to
the U I ~
. 8Y8tem
a) Endoderm b) Mesoderm
c) Ectoderm
d) Ectoderm and Endoderm
50. Of
the following, which I not c o n l d ~
ered a membnmou organelle
?
(a) lysosome {b) mitochondrion
c)
ribosome (d) golgi
body
Directions:
Questions
(51 to
60
).
Consi6U of
tu10 .teltements, one labelled
the
A .
sertlons (A)
and
the other
labelled
the
Reoaon (R) .
Examine theae statements
care
fully
and
diode If
the
statements
A.-ertlon
AJ and the Reaon (R) are fndfofcfually
true .and f
60,
whether
the
Re060n . a correct e x p l a t ~ a t l o n o f
the
Aaertlon. Select
your answent
to
these questloM from
the
codes gfoen belOt.D.
(a) Both A
and
R are true
and
R i the correct explanation of A
(b) Both A and R are true but R
is
not a correct explanation of A
{c) A is true but R is false
d) A is false but R is true.
Assertion
51.
Persons of
AB
blood group are universal ac
ceptors because
w ~
52
. A
woman
of blood
group
AB when married
to an
0
group
man
will
never get
an AB group child be-
cause
a)
b) c)
53. Malaria
can
be Contained with the introduc
tion of larvicidal
fi
sh, Gambusia, in ponds,
tanks
and
puddles.
a) b ) {c)
54. Parturition is the process of giving birth to the
young
a) b) c)
55.The gestation period of a
h
en
is 21
days
Reasoning
They can receive blood from persons of all
blood groups
d)
Blood groups 0 gene is dominant
over
A, B, or
AB
d)
Gambusia is highly specific in devouring larvas
of
female
anoph
eles mosquitoes.
d)
Relaxlne is
an
ovarian hormone that is respon
sible for the loosening of the public symphysis
at the time of parturition.
d)
The optimum temperature required during this
period of 21 days is 3
7 C
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a
)
b)
c
)
56.
D
uring the
p er
iod of w
ater depri
vation
on
th
e
de
sert. th
e ca
mel utilize
s w
ater store
d in
the
hu
mp on
its bac
k.
a)
b
)
c
57 .
lbe
reare
more
co
lour
b lind
men th
anwom
an
th rou
ghou t
t
he W
orld
a)
b)
c)
58. ln
c or ona
ry
heart dise
ase th
ere i
s im pa ir
m e n t
o
f hemt
m u
scle
a
)
b)
c
)
59. Mito
chond
ria ar
e believ
ed
to orig
inate
by
gr
ow th
and
d
ivisio
n
of
pr
eviousl
y exist
ing
ones .
a)
b)
c)
6
0.
AID
S
is
co n
s ide le
d to
be
o
n
of th
edeadli
est
diseases .
a)
b)
c)
d) .
Fa
tty subst
ance
o
ccurr in
g
in
t
he hump o
f the
cam
el follo
wing
metabo
l ism y
ield
wat
er
c
alled
m eta
bolic w
ater .
d
)
C olo
ur bl in
dness is
a se
x-linke
d dise
ase res
ult
in
g from
a rece
ssive
g
ene on
th
e
Y
chr
omo-
somes.
d).
Reduced
l
o o : ~
l y
d
).
They
conta
in
DNA
and
R
iboso m
es.
d
).
Its
virus
destro
ys
u
pr ss r
T lym
phocy
tes.
d).
PAR
T
IV. GEN
ERAl
K
Now
lEdGE
1
. Dodg
e is
tb
e
na
meof
(a )
Motor
-car
b) H ot
e l
(c)
Te
rm
in
s
ports (d
) None
of
th
e
abo
ve .
2. How
did
Li
aquat Ali
Kh
an
,
P
rimeM ins
ter
of
P
akis ta
n , die
in 1
9S I ?
a
) H
anged
after
a
bial
b)B y illn
ess
c) Assa
ssinate
d
d)
None of
these
.
3.
Bar
d of
Avon
is a
nickn
ame given
to
a) G.B.
S
haw
b
) Sh
akesp
eare
c
Winsto
n Chu
rchill
d ) S
he l ley.
4. Cutta
ck is loc
ated o
n
the bank
of
(a) G
oda va
r i
(b)
Mah
anadi
c)
Ka
veri
(d)
None
of
the
above.
5.
Wb
o
w
as
the
rec:
. p i
en t
or
Jawah
artalNe hr u
A
ward
for
Pe
act Inte
rnatio
na l u
ader-
studl
ag
for
t
he year 1990
?
(
a) Olaf
Palm e
b)
Vassar A
rafat
c}
Dr.
Helu
mt K
ohl
d)
Javie
r
P
erez d
e
C
uel la r.
6. Wl
llieb St
ate lea
ds in
India
in
the
produ
c t ion
.
of
gl
asswar
e
I
a)U.P
c) Kam
aWta
b) T
amil N
adu
(
d ) M ah
arash
tra.
1
W b i c h
of tbe
follo
wing r
iven
is no t a
t r ibu
ta
ry
oftb
e
Gan
ga?
a
) Kosi
c
)
G
om t i
b)
Y
amun
a
(d
) Teest
a.
8.
T
be
M
azgao
n Dock
ba s r e
eently
c ons t
ruc ted
(a ) O
ff-sho
re
drill
ing
pla
tforms
b
) Sub
marine
s (c)
Naval
sh
ips
(d )
No
ne o
f
the
abov
e
.
9 W l
lkll
oftlle
se pa
in is c
orrect
?
a) Jai
Sha
nkar Parsad
- Ka
mayan
i
b) Nan
k Sing
h
uide
c)
Rab
indra
Na
th
Tagore - Pa.nchtantra
d
)
V
iShnu
Shar
ma
-
eetanj
ali.
10. W
ho cre
a ted
th
e
c:h
arade
rMa
laprop
i l l' Tille
R
ivals
{a ) Dicke
ns
c) M a
rlowe
(b )
Sh
eridia
n
(d
) Non
e of
th
ese.
I I Wltod
iscove
red
transi
stor?
a ) Ga
lileo
b)
W. S hoc
kley
(c
) S ho le
s
(d ) No
ne
ofthese .
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12. W
ho w as
the
ftnt I
ndian
to
h
ave rM
eived
No-
bel prize
.
(a) Ra
b
ind
ra
nath T
agore
(b ) C.
V Ram
an
(c )
Jai
S
hanker
Pr
asad
(d)G op
alKri
shan
Gokhle
.
13. T
btftnt In
dian f
ilm
was ma
dt in the
yea r
(a) 1933
(b )
1912
(c)
19
35.
(d )
1901
14. W
hat wa
s the
nam
e o
f thetown e
stablis
hed
by
A
kbar
(a)
A
gra
{
b Delhi
(c
) F
atehp
ur Si
kri (d
) N iza
m abad
.
1
5
. F
int te l
egraph
line
i
n
India
cam
ein to op
era
I
tioft
ia
(a) 1854
(b )1
851
(c)
1852
(
d 1850.
16. Th
e
B
ritish
Pri
me Mt
ntsta
dur
ing
w h
ose period
lnclla
ac
hieve
d In
de-
pend
encewas
(a
) < :leme
ntAtti
ee (
b) H
arold Wi
lson
c) A n
thony
E den
(d ) W
insto
n
C
hu
rchill.
17. T
ungab
badra
ProJ
ect ln
volva
the
e t t
o f
(
a
A n
dhra Pra
desh
a
nd
K
amata
ka
(
b) Andh
ra P r
adesh a
nd Ta
mil N
adu
(c)
amata
ka an
dM a
harash
tra
(d) A
ndh
ra P rade
sh and
Or
issa.
18. What
Is
the name
of
the
official new s-
pap
erof
Chin
eseComm
unist
Par ty
(a
) Red
Aa
g (b )
Pra
vada
(c) Izve
stia
(d ) P
eoples
Daily.
19
.
The big
ges t airp
ort
In the
w
or ld at
Dal-
la
s Is
situ
ated
In
(a
) U.S .A
(b )
U K
c) G
erman
y
(d
) Fran
ce.
20.
nck
th
e
c
ountr
y t
o wh
om
Alex
ander
Graham
B ell
the
inventor of telephone
belo
nged
(a)
I
t
aly
c) G
erman
y
(b )
Engla n
d
(
d ) U .S
N
SWE
RW
ITH H
INTS
&. E
XPL
ANAT
ION
S
PHY
SICS
l.(c)
I
1 3
1
4
F
20
+
20
=
20
. c
) Here
im age
will
be
form ed
at
its new focal
le
ng th
I
and
F
::=
20
=
Scm
4
'
This le
ns c
an be di
v id ent
in to two
piM
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18/26
So.
~ e f f e c
1
1
1 1
2R
+ 2R
+
2R
1 1 1
3
=
- - ~
-
~ e f f e c t i
2R 2
R
2R
Rett
ectJve =
3
Her
e , no current
will
flow in 2
r{r+r
,
beca
use
this
will
behave
as
nullpoint circuit.
4 .a)
G
H
er e , r
is
radi
us
of loop
So,
area of
loop
=
~
There fore, its magnet ic mom ent
will
be
1 t ~
X i
5 . c)
6. c) H ere C1
and z are
in
series . Si
milarly C3
and c
are also in
series . This
whole setup is
i
n paralle
l.
So,
C =
~ z
C C
_ 2C C
2 - 2
B
Here, no
c
urrent
w
ill fol
low the
C
s p
ath be
cause it is
null point c
ircuit.
7 . a)
On
accoun
t
of
supe
r
po
sition the am
pli
tu de
s get
add
ed.
Since the tw
o waves trav
el
ling in
opposi te dir
ections are
sinuites they
produced
maximum
displacem ent
equal to
twice
the amplitude
of
ei ther.
8 . a )This is so
because
here vo lta
ge leads th e
curre
nt
by
n / 2in
phase
d
w eber
9 . a ) e= -
-d
or
volt
- - d
t
seco
n
1
10 . d)
Obtain the
value
of
m ag
netic field B
at
distance
x
from the
centre
of
the
coil on the
axis
. Find
the rate
o
f ch
ange of Bw
ith respect
t
o
x
= : .Put
ting the valu
e to zero give
s
x
=
Rt2 .
11.
a ) First thr
ee statem en
ts are correc
t. The
fo u
rth statem en
t
lo
ne is wrong,
the fri
nges
ared
ue to reflection
and
interfer
ence .
e
1.6x
10
-
19
12. b ) -
=
31
. Coulom
b/kg.
m
9 .1 x l0 -
13. b )
14. b) C hec
k dimensions
15 . b)
16
.
c
T he fall of
t emperatu
re from Hto
A is
the
sa
me as the fall
of temperat
ure from H t
o B.
H enc
e on joinin g
A
and Bby
the conducto
r,
no hea
t transfer will
take place
through the
conducto r
.
17 .
c) 18 .c) 19 .
a)
20
. a )21 .
a 22
. a)
23
. b
) Remember m
omentum fo
r photo n a
and m om en
tum for partic
le a
JE
.
1
24
. b ) Use th
e relahonp =
-
e n
nh
25
.
a ) The resulta
nt
of
force of gra
vi ty
an
d
force
of
inertia m
ust be 1 o th
e surface .
26
. c)
27
. b )
I f
the car accelerates for t i
m e t1.
then
at1
=
b t - t1)
28
. a ) Us
e the relation
1 2
1 2
P1 -
d v1
=
P
- dvz
2
2
for a horiz
ontal tube .
29
. a) R
eaction N h
as compon
ent
in
vertical
di-
rection
equal to the
weight
o
fth e
object. The
horizontal
compone
nt
of
N provid e
s t he cen
tripetal force . Now
{
can
be
calculated
30. c)
Force due to
surface tens
ion = 2 T
d2
Force
of
we
ight
of
need
le = 1t 4 x I
x p x g
E qua
te the two.
1
31. a ) At
the required
displacem en
t . the kinetic
energy =
x maxim um
kinet ic ener
gy. This
givessin
e= 11\F i
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