Entrance Test For Biotechnology Page 5
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2316.
V alue
o f
[ (x
.x
)/(x
.x
)]
i s
3
-‐6
2
-‐3
a) x
−2
b) x
-‐3
c) x
4.5
d) x
−4
17.
I n
g ymnosperms,
t he
p ollen
c hamber
r epresents:
a) the
m icrosporangium
i n
w hich
p ollen
g rains
d evelop
b) a
c ell
i n
t he
p ollen
g rain
i n
w hich
t he
s perms
f ormed
c) a
c avity
i n
t he
o vule
i n
w hich
p ollen
g rains
a re
s tored
a fter
p ollination
d) an
o pening
i n
t he
m ega
g ametophyte
t hrough
w hich
t he
p ollen
t ube
approaches
t he
e gg.
18.
T wo
i dentical
c ircular
l oops
o f
m etal
w ire
a re
l ying
o n
a
t able
w ithout
t ouching
e ach
o ther.
L oop
A
c arries
a
c urrent
w hich
i ncreases
w ith
t ime.
I n
r esponse,
t he
l oop
B
a) remains
s tationary
b) is
a ttracted
b y
t he
l oop
A
c) is
r epelled
b y
t he
l oop
A
d) rotates
a bout
i ts
c ircumference
19.
I f
t he
r adius
o f
t he
e arth
w ere
t o
s hrink
b y
o ne
p ercent,
i ts
m ass
r emaining
t he
s ame,
t he
a cceleration
d ue
t o
g ravity
o n
t he
e arth’s
s urface
w ould
a) decrease
b) remain
u nchanged
c) increase
d) be
z ero
20.
I f
t he
d istance
b etween
t he
e arth
a nd
t he
s un
w ere
h alf
i ts
p resent
v alue,
t he
n umber
o f
d ays
i n
a
y ear
w ould
h ave
b een
a) 64.5
b) 129
c) 182.5
d) 730
21.
A
c onverging
l ens
i s
u sed
t o
f orm
a n
i mage
o n
a
s creen.
W hen
t he
u pper
h alf
o f
t he
l ens
i s
c overed
b y
a n
o paque
s creen
a) half
o f
t he
i mage
w ill
d isappear
b) complete
i mage
w ill
b e
f ormed
c) intensity
o f
t he
i mage
w ill
i ncrease
d) No
i mage
w ill
b e
f ormed
22.
A
s hip
o f
m ass
3 x10
k g
i nitially
a t
r est,
i s
p ulled
b y
a
f orce
o f
5 x
1 0
N
t hrough
a
7
4
d istance
o f
3
m .
A ssuming
t hat
t he
r esistance
d ue
t o
w ater
i s
n egligible,
t he
s peed
o f
t he
s hip
i s
a) 1.5
m /s
b) 60
m /s
c) 0.1
m /s
d) 5
m /s
5
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