if a : b :: c : d then invertendo is:
a : c :: b : d
a : b :: d : c
b : c :: d : c
None of these.
/
/
4
3
1
2
a2(b + c) + b2 (c + a) + c2 (a + b)
a2(b + c) + 3 abc.
a2(b + c) + b2 (c + a) + c2 (a + b) + 3 abc.
None of these.
If the salary of Ram is 25% more than the salary of Sham, then the salary of Sham is less than the salary of Ram is percent is:
10%
15%
20%
25%
What will be the fourth proportional of P, q2, rs –
8
10
12
13
The polynomial, (x4 – 5x3 + 5x2 -10x + 24) has factor as:
x + 4
x – 2
x + 2
None of these
H.C.F. of p3q4r6 and p6q2r4:
p2q3 r6
p3q2r4
p4q2r4
p2q3r4
The L.C.M. of (x2 -1), (x2 + x) and (x + 1)2 is:
(x + 1)
(x2 -1) (x +1)2
(x2-1) (x2 + x)
(x2 -1)(x + 1)2
/
(x -1)
(x + 2)
(x +2)
(x + 3)
/
/
0
1
-1
/
/
Find the sum which will amount to Rs. 9261 after 3 years componented at the rate of 5%:
Rs.8000
Rs.8500
Rs.9000
9200
If the present population of a village is 10,648 and every year it increase by 5% then 3 year before the population was:
One light year is equal to:
4.961 × 1015 km
4.623 × 1015 km
9.467 × 1015 km
6.941 × 1015 km
The light of small wavelength emitted during fission of U-235 isotope is known as:
ß-rays
gamma rays
X-rays
None of these
Three conductors of resistance r1,r2 and r3 are connected in series, the equivalent resistance R is given by the relation;
Two wires each of resistance r ohms are joined in parallel. Their equivalent resistance will be:
2r (
r/2(
2/r (
zero (
A single solar cell measuring about 4 cm2 provide electricity of the voltage:
10 V
0.4 to 0.5 V
4 to 5 V
none of these
A dentist’s concave mirror has a focal length of 3 cm. The mirror is placed 2 cm from the tooth. The magnification of the image will be:
+6
+1/6
-3
+3
Snell’s law is:
Which one is true:
Magnifying power of simple microscope when image is formed at infinity is given by M =
Magnifying power of compound microscope is:
If a body is moving in a circle of radius r with a constant speed v, its angular velocity is give as:
v/r
v2/r
rv
r/v
A body thrown upwards with velocity a covers maximum distance:
S.I. unit of impulse will be:
Nm
Ns
N/s
Ns-2
A spherical planet far out in space has a mass M0 and diameter D0. A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity, which is equal to:
The energy possessed by a body due to its position or configuration is:
P.E.
K.E
Both (a) & (b)
none of these
Neoprene rubber is a polymer of:
isoprene
2-chlorobutadyne
ethane
None of these
What is speed of alpha particle?
1/5 th of speed of light
1/10 th of speed of light
Equal to speed of light
more than speed of light
Normal type of MCQ with one correct option
A lizard-like member of reptilian is sitting on a tree with its tail coiled around a twig. This animal could be:
Hemidactylus showing sexual dimorphism
Varanus showing mimicry
Garden lizard (calotes) showing camouflage
Chameleon showing protective coloration
a-normal enzyme reaction, b-competitive inhibition, c-non-competitive inhibition
a-enzyme with an allosteric modulator, b-competitive inhibitor added, c-normal enzyme reaction
a-enzyme with an allosteric stimulator, b-competitive inhibitor added, c-normal enzyme reaction
a-normal enzyme reaction, b-non-competitive inhibitor added, c-allosteric inhibitor added
Normal type of MCQ with one correct option
Viruses that infect bacteria multiply and cause their lysis, are called________
lysozymes
lipolytic
lytic
lysogenic
Normal type of MCQ with one correct option
A normal woman, whose father was colorblind, is married to a normal man. The sons would be:
75% colorblind
50% colorblind
All normal
All colorblind
Normal type of MCQ with one correct option
Grafting is successful in dicots but not in monocots because the dicots have:
vascular bundles arranged in a ring
cambium for secondary growth
vessels with elements arranged end to end
Cork cambium
Normal type of MCQ with one correct option
In prokaryotes, chromatophores are:
Specialized granules responsible for coloration of cells
Structures responsible for organizing the shape of the organism
Incusion bodies lying free inside the cells for carrying out various metabolic activates
Internal membrane systems that may become extensive and complex in photosynthetic bacteria
Normal type of MCQ with one correct option
Keystone species deserve protection because these:
Are capable of surviving in harsh environmental conditions
Indicate presence of certain minerals in the soil
Have become rare due to over exploitation
Play an important role in supporting other species
Normal type of MCQ with one correct option
During protein synthesis in an organism, at one point the process comes to a halt. Select the group of the three codons from the following, from which any one of the three could bring about this halt?
UUU, UCC, UAU
UUC, UUA, UAC
UAG, UGA, UAA
UUG, UCA, UGG
ASSERTION(REASON
Assertion: In plant tissue culture, somatic embryos can be induced from any plant cell.
Reason: Any viable plant cell can differentiate in to somatic embryos.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
ASSERTION(REASON
Assertion: UV radiation causes photo dissociation of ozone into O2 and O, thus causing damage to the stratospheric ozone layer.
Reason: Ozone hole is resulting in global warming and climate change.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
ASSERTION(REASON
Assertion: Gram-negative bacteria do not retain the stain when washed with alcohol.
Reason: The outer face of the outer membrane of Gram-negative bacteria is integrated into the membrane lipids.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
ASSERTION(REASON
Assertion: Photosynthetically C4 plants are less efficient than C3 plants.
Reason: The operation of C4 pathway requires the involvement of only bundle-sheath cells.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
Normal type of MCQ with one correct option
An ionic solid XY crystallizes in zinc blende structure. If the radius X+ is 45 pm then the ideal radius (so that there is no distortion in the lattice) of Y( would be.
108.7 pm
290.32 pm
200 pm
145.16 pm
Normal type of MCQ with one correct option
Which kind of isomerism is exhibited by octahedral complex [Cr(NH3)4(NO2)2] NO3?
Geometrical, ionization and optical
Geometrical and linkage
Optical, ionization and linkage
Geometrical, ionization and linkage.
Normal type of MCQ with one correct option
Which of the following statement is incorrect?
Chalcopyrite contains iron and copper
Sphalerite or zinc blende is oxide ore of zinc and zinc is extracted from it by carbon reduction.
Argentite is the sulpide ore of silver.
Cassiterite is the oxide ore of tin and is extracted from it by carbon reduction.
Normal type of MCQ with one correct option
Trans-5-Decene on addition of bromine water followed by treatment with NaOH solution produces a racemic mixture of cyclic ether. The product can be.
A,B
B,C
C,D
A,B & D
A,B
A,C
B,C,D
A,B & D
A,B
A,C
B,C,D
A,B & D
0.6 atm
0.5 atm
1.5 atm
1.6 atm
3 : 2
1 : 4
2 : 3
3 : 8
None of these
Normal type of MCQ with one correct option
A seven digit number is in the form of abcdefg (g, f, e…etc. are digits at units, tens, hundred place …et.) where a < b < c < d and d > e > f > g. The number of such numbers is
1980
1116
1560
1476
(1, 0)
(2, 0)
(3, 0)
(4, 0)
Normal type of MCQ with one correct option
Various injective functions f are defined from set A ( {1, 2, 3, 4} to {1, 2, 3, 4, 5, 6, 7, 8, 9 10} and a function among then is chosen, randomly. If it is formed to be increasing, then the probability that f(4) = 8 is
Normal type of MCQ with one correct option
If f(x) = 9.4x ( 24.2x and g(x) = cos 2x ( 4 sin2x ( 5 cos2x, then the value of x and y for which f(x) + 12 = g(y) are
Normal type of MCQ with one correct option
Let f(x) = R+ ( R+ is an invertible function such that f’(x) > 0 and f”(x) > 0 ( x ( [1, 5]. If f(1) = 1 and f(5) = 5 and area under the curve y = f(x) on x-axis from x = 1 to x = 5 is 8 sq. units, then are bounded by y = f(1 (x) on x-axis from x = 1 to x = 5 is
8
12
16
20
A,B
B,C
C,D
A,B & D
A,B,D
A,C
C,D
A,B & D
A,B
A,C
C,D
A,B & D
f is one-one and onto
f is one-one and into
f is many one
none of these
Comprehension
f : A ( B, is a twice differentiable function, f(0) = 0 and graph of y = f(x) intersect the graph of y = x at three distinct points
g : R ( [(1, 1] is defined by g(x) = sin x, where
gof : A ( [(1,1] is one-one and onto and fog : R ( B is onto
Domain of f is
(i), (ii), (iii) are correct
only (i), (ii) are correct
only (i) and (ii) are correct
(i), (ii), (iii) are false
Normal type of MCQ with one correct option
A capillary tube with inner cross-section in the form of a square of side a is dipped vertically in a liquid of density ( and surface tension ( which wet the surface of capillary tube with angles of contact(. The approximate height to which liquid will be raised in the tube is : (Neglect the effect of surface tension at the corners capillary tube)
None of these
None of these
Normal type of MCQ with one correct option
Two particles execute SHM on same straight line with same mean position, same time period 6 second and same amplitude 5 cm. Both the particles start SHM from their mean position (in same direction) with a time gap of 1 second. Find the maximum separation between the two particles during their motion:
2 cm
3 cm
4 cm
5 cm
Only Statement-1 is correct
Only Statement-2 is correct
Both Statement-2 and Statement-3 are correct
All three Statement are correct
Both Statement – 1 and Statement – 2 are correct
Only Statement – 3 is correct
All three Statement are correct
None of three statements is correct.
A,B
B,C,D
C,D
A,B & D
/
A,B
A,C
B,D
A,B & D
A
A,C
C,D
A,B & D
20 (C
28 (C
37.5 (C
None of these
36 : 1
9 : 4
6 : 1
1 : 1
1 (
2 (
3 (
4 (