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Statement A: For a particular character in an individual, each gamete gets only one allele.
Statement B: Chromatids of a
chromosome split (separate) and move towards opposite poles during anaphase of mitosis.
A. Both the statements are correct and \( B \) is the reason fo
\( A \)
B. Both the statements are correct and B is not the reason for \( A \)
c. statement A is correct and statement B is wrong.
D. statement B is correct and statement A is wrong
| 0 |
Biology
|
If \( x \) and \( y \) are arbitrary intensive
variables, then:
This question has multiple correct options
A. \( x y \) is an intensive variable
B. \( x / y \) is an intensive variable
c. \( x+y \) is an extensive property
D. \( d x / d y \) is an intensive property
| 1 |
Chemistry
|
Give the IUPAC name for \( \boldsymbol{H}_{3} \boldsymbol{C}-\boldsymbol{C} \boldsymbol{H}_{2}- \)
\( \boldsymbol{C H}_{2}-\boldsymbol{O H} \)
A. Propanal
B. Propanol
c. Propionic acid
D. Propane
| 1 |
Chemistry
|
Pyrolysis of wood occurs in
A. Presence of air
B. Absence of air
C . limited supply of air
D. Both B and C
| 0 |
Biology
|
Arrange the following compounds in an increasing order of their reactivity in nucleophilic addition reactions:
ethanol, propanal, propanone, butanone
| 1 |
Chemistry
|
Infinite long wire having linear charge density \( 0.2 \mathrm{C} / \mathrm{m} \). find electric intensity at a distance \( 2 \mathrm{m} \) from wire?
A \( \cdot 1.8 \times 10^{9} \mathrm{V} / \mathrm{m} \)
B. \( 0.9 \times 10^{9} \mathrm{V} / \mathrm{m} \)
c. \( 2.7 \times 10^{9} \vee / \) m
D. 0.3x10^ \( v / m \)
| 3 |
Physics
|
Thomson's model could not explain the :
A. stability of an atom
B. position of nucleus in an atom
c. scattering of alpha particles
D. all of above
| 1 |
Chemistry
|
Which of the following is called as club
moss?
A. Pteris
B. Lycopodium
c. Equisetum
D. Marsilea
| 0 |
Biology
|
Which of the following hydrocarbons has the lowest dipole moment?
A. cis-2-butene
B. 2-butyne
c. I=butyne
D. \( H_{2} C=C H-C \equiv C H \)
| 1 |
Chemistry
|
Let \( \boldsymbol{A}=\{1,2,3,4,5,6\} \) and \( B= \)
\( \{6,7,8\} . \) Find \( A \triangle B \) and draw Venn
diagram
| 2 |
Maths
|
A boat takes 2 hours to travel \( 8 k m \) and
back in still water lake. With water
velocity of \( 4 k m / h, \) the time taken for going upstream of \( 8 k m \) and coming back is
A. 160 minutes
B. 80 minutes
c. 100 minutes
D. 120 minutes
| 3 |
Physics
|
Find \( 4^{t h} \) term from the end of the G.P.
\( \mathbf{3}, \mathbf{6}, \mathbf{1 2}, \mathbf{2 4}, \dots, \mathbf{3 0 7 2} \)
| 2 |
Maths
|
A completely inelastic is one in which the two colliding particles
A. split into small fragments flying in all directions
B. remain together after the collision.
c. are separated after the collision.
D. none of the above
| 3 |
Physics
|
Assertion
Molecular formula shows the exact
number of different types of atoms
present in a molecule of a compound.
Reason
Molecular formula can be obtained
directly from empirical formula which represents the simplest whole number ratio of various atoms present in a
compound.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
| 1 |
Chemistry
|
What is the product formed when gold
is dissolved in aqua regia?
A. \( H_{3} A u C l_{2} O_{2} \)
в. \( H A u C l_{4} \)
c. \( H_{2} A u C l_{4} \)
D. \( H_{2} A u C l O_{2} \)
| 1 |
Chemistry
|
Add the following:
\( (-100)+(-92)+(-84)+\ldots . .+92 \)
| 2 |
Maths
|
Determine the coefficient of dynamic viscosity of the liquid.
A \( .0 .45 \mathrm{N} / \mathrm{m}^{2} \)
В. \( 0.85 \mathrm{N} / \mathrm{m}^{2} \)
c. \( 0.56 N / m^{2} \)
D. \( 0.77 \mathrm{N} / \mathrm{m}^{2} \)
| 3 |
Physics
|
The sum of the probabilities of each
outcome in an experiment is
| 2 |
Maths
|
The most stable fullerene is :
A . \( C_{6} \)
в. \( C_{7} \)
c. \( C_{100} \)
D. \( C_{9} \)
| 1 |
Chemistry
|
The first term of an \( A . P . \) is \( 5, \) the
common difference is 3 and the last
term is \( 80, \) find the number of terms.
| 2 |
Maths
|
Offspring formed by asexual method of reproduction have greater similarity among themselves, because
A. Asexual reproduction involves only one parent
B. Asexual reproduction involves gametes
c. Asexual reproduction occurs before sexual reproduction
D. Asexual reproduction occurs after sexual reproduction
| 0 |
Biology
|
The curve \( y=a x^{2}+b x+c \) passes
through the point (1,2) and its tangent
at origin is the line \( y=x \). The area
bounded by the curve, the ordinate of the curve at minima an the tangent line
is
A \( \cdot \frac{1}{24} \)
B. \( \frac{1}{12} \)
\( c \cdot \frac{1}{8} \)
D. \( \frac{1}{6} \)
| 2 |
Maths
|
A beaker contains a solution of
substance 'A'. On dissolving substance \( A^{\prime} \) in small amount in this solution,
precipitation of substance ' \( \boldsymbol{A}^{\prime} \) takes place. The solution is
A. concentrated
B. Saturated
c. Unsaturated
D. super saturated
| 1 |
Chemistry
|
For a chemical change to occur the particles should be in:
A . equilibrium
B. same temperature
c. close contact
D. high pressure
| 1 |
Chemistry
|
What is the hybridization state of
cation part of solid \( \boldsymbol{P} \boldsymbol{C l}_{5} \) ?
A \( \cdot s p^{3} d^{2} \)
B \( \cdot s p^{2} \)
\( c \cdot s p^{3} \)
\( \mathrm{D} \cdot s p^{3} d \)
| 1 |
Chemistry
|
The fraction of the total current carried
by an ion is known as:
A. transport number of that ion
B. conductance of that ion
c. both (A) and (B)
D. none of the above
| 1 |
Chemistry
|
Which is the accepted structure of
\( H_{2} O_{2} \) in gas phase?
\( A \)
в.
c. both
D. none
| 1 |
Chemistry
|
The wrong statements about \( N H_{3} \) is :
A. it is oxidised with oxygen at \( 700^{\circ} \mathrm{C} \) in the presence of platinum
B. it gives black precipitate with calomel
\( \mathbf{C} \cdot \) it can be dried by \( P_{2} O_{5}, H_{2} S O_{4} \) and \( C a C l_{2} \)
D. it gives white fumes with HCI
| 1 |
Chemistry
|
Which of the following is Heisenberg uncertainty principle?
A \( \cdot \Delta x \cdot \Delta p \geq \frac{h}{4 \pi} \)
в. \( \Delta x . \Delta p=\frac{h}{4 \pi} \)
c. \( \Delta x . \Delta p \leq \frac{h}{4 \pi} \)
D. \( \Delta x . \Delta p<\frac{h}{4 \pi} \)
| 1 |
Chemistry
|
Fill in the blank.
Electromagnetic induction occurs in a
wire when a change occurs in
in wire.
A . current
B. intensity of the electric field
C . voltage applied
D. magnetic field intensity applied
E. resistance added to the wire
| 3 |
Physics
|
Inequality \( a+i b>c+i d \) can be
explained only when :
A. \( b=0, c=0 \)
В. \( b=0, d=0 \)
c. \( a=0, c=0 \)
D. \( a=0, d=0 \)
| 2 |
Maths
|
A parallel plate air capacitor has a
capacitance \( C . \) When it is half filled with a dielectric of dielectric constant 5
the percentage increase in the capacitance will be
A . \( 400 \% \)
B . \( 66.6 \% \)
c. \( 33.3 \% \)
D. 200\%
| 3 |
Physics
|
Quadrilaterals ABCD and PQRS are
similar.What is the length of PQ?
A . 2.67
B. 3.75
\( c \)
\( D .5 \)
| 2 |
Maths
|
The fixed resistance is called
A. rheostat
B. resistor
\( c \cdot k e y \)
D. switch
| 3 |
Physics
|
If
\( D \) and \( E \) are the midpoint of the sides
\( A B \) of a triangle \( A B C, \) Prove that \( \boldsymbol{B E}+\overline{\boldsymbol{D C}}=\frac{\mathbf{3}}{\mathbf{2}} \overline{\boldsymbol{B} \boldsymbol{C}} \)
| 2 |
Maths
|
\( P, Q \) and \( R \) are three points in a uniform
electric field. The electric potential is
A. minimum at R
B. minimum at
\( c . \) minimum at
D. Same at all three points
| 3 |
Physics
|
What do you mean by coherent source.
| 3 |
Physics
|
Why oxygen was initially considered as a reference for atomic mass?
A. It has lower mass
B. It reacted with large number of elements and formed compounds
c. This atomic mass unit gave masses of most of the elements as whole numbers
D. Both B and C
| 1 |
Chemistry
|
The corrosive action of \( H_{2} S O_{4} \) on the
skin is due to its
(dehydrating/hydrating) action.
| 1 |
Chemistry
|
The set representing the correct order of first ionization potential is :
\( A \cdot K>N a>L i \)
в. \( \mathrm{Mg}>\mathrm{Be}>\mathrm{Ca} \)
C. \( B>C>N \)
D. \( S c>Y>L a \)
| 1 |
Chemistry
|
In how many steps, \( C O_{2} \) is released in aerobic respiration of pyruvic acid?
A. one
B. Six
c. Three
D. Twelve
| 0 |
Biology
|
An optician, while testing the eyes of a patient, keeps a chart of letters \( 3 \mathrm{m} \)
behind the patient and asks her to see the letters on the image of chart formed
in a plane mirror kept at distance \( 2 \mathrm{m} \) in front of her. How far away is the chart seen by the patient?
A. 3 m
B. 2 m
\( c \cdot 6 m \)
D. \( 7 \mathrm{m} \)
| 3 |
Physics
|
Study the following lists.
ListList-II
(A) A piece of underground
(I) Mentha food branches store
(B) Underground branches grow obliquely upward from
(II) Hydrocotyl the axillary buds of nodes of the stem below the soil.
(III) Agave and produce
(C) Aerial branches grow adventitious yownwards. \( \quad \) roots after obliquely o touching the soil
(V) Stachys and
(D) Weak stemmed plants \( \quad \) roots at every have a cluster of leaves.
(V) Jasminum
\( A \cdot A-(111), B-(1 V), C-(11), D-(1) \)
B. A- (IV), B- (V), C- (III), D- (II)
C. \( A-(1 V), B-(1), C-(V), D-(11) \)
D. \( A-(11), B-(V), C-(1), D-(1) \)
| 0 |
Biology
|
If \( \int \frac{1}{5+4 \cos 2 \theta} d \theta=A \tan ^{-1}(B \tan \theta)+c \)
then \( (A, B)= \)
| 2 |
Maths
|
Allium cepa is example of
A . Cruciferae
B. Liliaceae
c. Solanaceae
D. compositae
| 0 |
Biology
|
Polyuronic acid and polysulphate esters are characteristic in cell wall of
A. Brown algae
B. Red algae
c. Dinoflagellates
D. Diatoms
| 0 |
Biology
|
If \( \boldsymbol{a}=\lim _{x \rightarrow \infty}(\sqrt{x+\sqrt{x}-} \sqrt{x}) \) and \( b= \)
\( \lim _{x \rightarrow \infty}(x-\sqrt{x+x^{2}}) \) then
\( \mathbf{A} \cdot a+b=1 \)
B . \( a+b=0 \)
\( \mathbf{c} \cdot a=b \)
D. \( a+b=2 \)
| 2 |
Maths
|
Ozone is not:
This question has multiple correct options
A . paramagnetic
B. a bleaching agent
C . an oxidising agent
D. a reducing agent
| 1 |
Chemistry
|
Boyle's law states that:
A. \( V \propto T \) at constant pressure.
B. \( P \propto T \) at constant volume.
\( ^{\mathrm{C}} P \propto \frac{1}{V} \) at constant temperature
D. None of these.
| 1 |
Chemistry
|
toppr
Q Type your question
Fill in the blanks by choosing an appropriate option.
At a particular spot of an object made of
iron, \( (i) \) of iron to ferrous ion takes
place and that spot behaves as \( (i i) \)
Electrons released at \( (i) \) spot move through the metal and \( \$ 0 \) to another
spot on the metal and reduce oxygen in
presence of \( \boldsymbol{H}^{+} . \) This spot behave as
(iiii). The ferrous ions are further
oxidised by atmospheric oxygen to ferric ions which come out as rust, \( (i v) \) and with further production of \( (v) \) ions.
\( A \cdot(i)- \) Oxidation
(ii)- Anode, (iii)-Cathode, (iv)\( F e_{2} O_{3} \cdot x H_{2} O,(v)-H y d r o g e n \)
B. (i)- Reduction, (ii)-Cathode, (iii)-Anode, (iv)- \( F e_{3} O_{4},(v) \)
Hydrogen
C . (i)-Oxidation, (ii)-Cathode, (iii)-Anode, (iv)\( F e_{2} O_{3} x H_{2} O,(v)-H y d r o g e n \)
D. (i)-Oxidation, (ii)-Anode, (iii)-Cathode, (iv)- \( F e_{2} O_{3} \) \( H_{2} O,(v) \) -Ferrous
| 1 |
Chemistry
|
The average of \( 1 \frac{1}{6}, 2 \frac{1}{3}, 6 \frac{2}{3} \) and \( 8 \frac{5}{6} \) is
A \( \cdot 6 \frac{3}{4} \)
в. \( _{5} \frac{3}{4} \)
c. \( _{4} \frac{3}{4} \)
D. \( _{3} \frac{3}{4} \)
| 2 |
Maths
|
Match the following.
List-I \( \quad \) List-II (Monomer)
A) Sucrose
i) \( \beta \) -D-Galactose and \( \beta \) -D-Glucose
B) Cellulose
ii) \( \alpha \) -D-Glucose and \( \beta \) -D-Fructose
c) Starch
iii) \( \beta \) -D-Glucose
D) Lactose
iv) \( \alpha \) -D-Glucose
A. A-i; B-ii; C-iii; D-iv
B. A-ii; B-i; C-iii; D-iv
c. A-ii; B-iii; C-iv; D-i
D. A-iv; B-iii; C-i; D-ii
| 1 |
Chemistry
|
Which of the following \( N^{3-}, O^{2-}, F^{-} \) is
largest in size?
A \( \cdot N^{3} \)
B. \( O^{2} \)
\( c \cdot F^{-} \)
D. All of these
| 1 |
Chemistry
|
Identify the wrong statement in the following. Coulomb's law correctly describes the electric force that
A. binds the electrons of an atom to its nucleus
B. binds the protons and neutrons in the nucleus of an atom
c. binds atoms together to form molecules
D. binds atoms and molecules together to form solids
| 3 |
Physics
|
The \( p H \) of \( 0.01 M \) solution of sodium salt of a substituted benzoic acid at
\( 25^{\circ} C \) is: \( \left(K_{a}=1.0 \times 10^{-4} \text {at } 25^{\circ} C\right) \)
A. 6
B. 4
\( c \cdot 8 \)
D. 10
| 1 |
Chemistry
|
An acid is a substance that produces
ions in a water solution
A. oxygen
B. nitrogen
c. carbon
D. hydrogen
| 1 |
Chemistry
|
A transformer steps up an \( A C \) supply from \( 220 V \) to \( 2200 V . \) If the secondary
coil of the transformer has 2000 turns, the number of turns in its primary coil will be:
A . 200
в. 100
c. 50
D. 20
| 3 |
Physics
|
Colligative molality \( = \) molality \( \times \)
Van't Hoff factor
If true enter \( 1, \) if false enter 0
| 1 |
Chemistry
|
The angle of incidence at which reflected light is totally polarised for reflection from air to glass (refractive index \( n \) ) is
A \( \cdot \sin ^{-1}(n) \)
B. \( \sin ^{-1}\left(\frac{1}{n}\right) \)
\( ^{\mathbf{c}} \cdot \tan ^{-1}\left(\frac{1}{n}\right) \)
\( \mathbf{D} \cdot \tan ^{-1}(n) \)
| 3 |
Physics
|
The sun appears red at the time of sun-
rise and sun-set. This is because:
A. red colour is least scattered
B. red colour is most scattered
c. the sun is red in colour
D. our eyes can sense only red colou
| 3 |
Physics
|
If \( \cos \left(\log i^{4 i}\right)=a+i b, \) then
B . \( a=-1, b=1 \)
c. \( a=1, b=0 \)
D. \( a=1, b=2 \)
| 2 |
Maths
|
In the detection test of carbon and
hydrogen with cupric oxide, carbon is oxidized to:
A. carbon monoxide
B. carbon dioxide
c. carbonic acid
D. copper sulphate
| 1 |
Chemistry
|
In the following reaction.
\( \left[\boldsymbol{C u}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{3} \boldsymbol{O} \boldsymbol{H}\right]^{+}+ \)
\( \left[\boldsymbol{A l}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{6}\right]^{3+} \longrightarrow\left[\boldsymbol{C u}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{4}\right]^{2+}+ \)
\( \left[\boldsymbol{A l}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{5}(\boldsymbol{O} \boldsymbol{H})\right]^{2+} \)
\( (\boldsymbol{A}) \)
\( (B) \)
\( (C) \)
\( (D) \)
This question has multiple correct options
A \( .(A) \) is an acid and \( (B) \) is a base
B. \( (A) \) is a base and \( (B) \) is an acid
C. \( (C) \) is the conjugate acid of \( (A) \) and \( (D) \) is the conjugate base of \( (B) \)
D. \( (C) \) is the conjugate base of \( (A) \) and \( (D) \) is the conjugate acid of \( (B) \)
| 1 |
Chemistry
|
Which of the following is not proposition?
A. 3 is prime.
B. \( \sqrt{2} \) is irrational.
c. Mathematics is interesting
D. 5 is an even integer
| 2 |
Maths
|
The value of \( k \) for which the lines \( 2 x+ \)
\( \mathbf{3} \boldsymbol{y}+\boldsymbol{a}=\mathbf{0} \) and \( \mathbf{5} \boldsymbol{x}+\boldsymbol{k} \boldsymbol{y}+\boldsymbol{a}=\mathbf{0} \)
represent family of parallel lines is
\( A \cdot 3 \)
в. 4.5
\( c .7 .5 \)
D. 15
| 2 |
Maths
|
A circular disc of mass \( 10 \mathrm{kg} \) and radius
\( 0.2 \mathrm{m} \) is set into rotation about an axis
passing through its centre and perpendicular to its plane by applying torque \( 10 \mathrm{Nm} \). Calculate angular velocity of the disc that it will attain at the end
of 6 s from the rest.
| 3 |
Physics
|
Take the mean distance of the moon
and the sun from the earth to be \( 0.4 \times \)
\( 10^{6} k m \) and \( 150 \times 10^{6} k m \) respectively.
Their masses are \( 8 \times 10^{22} k g \) and \( 2 \times \)
\( 10^{30} k g \) respectively. The radius of the
earth is \( 6400 \mathrm{km} \). Let \( \Delta F_{1} \) be the difference in the forces exerted by the
moon at the nearest and farthest points
on the earth and \( \Delta F_{2} \) be the difference
in the force exerted by the sun at the nearest and farthest points o the earth. Then, the number closest to \( \frac{\Delta F_{1}}{\Delta F_{2}} \) is :
A .2
B. \( 10^{-2} \)
\( c .0 .6 \)
D.
| 3 |
Physics
|
Find the \( 13^{t h} \) terms in the expansion of
\( \left(9 x-\frac{1}{3 \sqrt{x}}\right)^{18}, x \neq 0 \)
A . 18564
B. 87328
c. 17374
D. 35546
| 2 |
Maths
|
Mark the correct statement(s) based on
the phase diagram of \( C O_{2} \) shown in the graph.
rhis question has multiple correct options
A \( \cdot 298 \mathrm{K} \) is the normal boiling point of liquid \( C O_{2} \)
B. At 1 atm \& 190 K \( C O_{2} \) will exist as gas.
\( \mathrm{c} \cdot \mathrm{CO}_{2}(s) \) will sublime above \( 195 \mathrm{K} \) under norma atmospheric pressure
D. Melting point \& boiling point of \( C O_{2} \) will increase on increasing pressure.
| 1 |
Chemistry
|
\( \boldsymbol{R}_{1}, \boldsymbol{R}_{2}, \boldsymbol{R}_{3} \) are different values of \( \boldsymbol{R} \)
\( \mathbf{A}, \mathbf{B}, \mathbf{C} \) are the null points obtained
corresponding to \( \boldsymbol{R}_{1}, \boldsymbol{R}_{2} \) and \( \boldsymbol{R}_{3} \)
respectively. For which resistor, the value of \( X \) will be the most accurate and
why?
\( A \cdot R_{1} \)
B. \( R_{2} \)
\( c \cdot R_{3} \)
D. All same
| 3 |
Physics
|
Which of the following could be the value of \( A C-B C \) in the construction
of a triangle \( A B C \) in which base \( A B= \)
\( \mathbf{5} c m, \angle A=30^{\circ} ? \)
A . 5.5
B. 5
c. 2.5
D. None of these
| 2 |
Maths
|
Vulcanised rubber resists:
This question has multiple correct options
A. wear and tear due to friction
B. cryogenic temperature
C . high temperature
D. action of acids
| 1 |
Chemistry
|
The hybridization of atomic orbitals of
nitrogen in \( N O_{2}^{+}, N O_{3}^{-} \) and \( N H_{4}^{+} \) are:
A \( . s p, s p^{3} \) and \( s p^{2} \) respectively
B. \( s p, s p^{2} \) and \( s p^{3} \) respectively
\( \mathrm{c} \cdot s p^{2}, \mathrm{sp} \) and \( s p^{3} \) respectively
D. \( s p^{2}, s p^{3} \) and sp respectively
| 1 |
Chemistry
|
Which of the following is not an aliphatic hydrocarbon?
A. ethene
B. ethane
c. propyne
D. benzene
| 1 |
Chemistry
|
A cylinder of radius \( R \) is to roll without
slipping between two planks as shown in the figure, Then
This question has multiple correct options
A. angular velocity of the cylinder is \( \frac{v}{R} \) counter clockwise
B. angular velocity of the cylinder is \( \frac{2 v}{R} \) clockwise
c. velocity of centre of mass of the cylinder is v towards left
D. velocity of centre of mass of the cylinder is \( 2 v \) towards right
| 3 |
Physics
|
A particle starts with angular
acceleration 2 rad/sec\( ^{2} \). It moves
100 rad in a random interval of 5 sec.
Find out the time at which random
interval starts.
A. 7.5 sec
B. 4.5 sec
\( \mathrm{c} .5 \mathrm{sec} \)
D. 6 sec
| 3 |
Physics
|
An equipotential surface is that surface
A. on which each and every point has the same potential
B. which has negative potential
C . which has positive potential
D. which has zero potential
| 3 |
Physics
|
The act of breathing out air from the lungs is called as
A. Absorption
B. Exhalation
c. Excretion
D. Inhalation
| 0 |
Biology
|
Sucrose molecule is made up of:
A \( . \alpha-D- \) gluco pyranose and \( \beta-D- \) fructo pyranose
B. \( \alpha-D- \) gluco pyranose and \( \beta-D- \) fructo furanose
C \( . \alpha-D- \) gluco furanose and \( \beta-D- \) fructo pyranose
D. \( \alpha-D- \) gluco furanose and \( \beta-D- \) fructo furanose
| 1 |
Chemistry
|
The sun subtends an angle of half a
degree at the pole of a concave mirror which has a radius of cutvature of \( 15 m \)
Then the size(diameter) of the image of
the sun formed by the concave mirror is
A \( .7 .5 \mathrm{cm} \)
B. \( 6.55 \mathrm{cm} \)
\( \mathrm{c} .3 .7 \mathrm{cm} \)
D. 13.1cm
| 3 |
Physics
|
Excretory product of spider is
A. Ammonia
B. Uric acid
C. Guanine
D. All the above
| 0 |
Biology
|
Find the mean deviation about the
median for the following continuous distribution:
\( \begin{array}{lllll}\text { Marks } & 0- & 10- & 20- & 30- \\ \text { obtained } & 10 & 20 & 30 & 40\end{array} \)
No. of
body 6
\( 8 \quad 14 \)
| 2 |
Maths
|
A radioactive element \( X \) distintegrates
successively \( \boldsymbol{X} \stackrel{\boldsymbol{\beta}^{-}}{\longrightarrow} \boldsymbol{X}_{\mathbf{1}} \stackrel{\boldsymbol{\alpha}}{\longrightarrow} \boldsymbol{X}_{2} \stackrel{\boldsymbol{\beta}^{-}}{\longrightarrow} \boldsymbol{X}_{\mathbf{3}} \stackrel{\boldsymbol{\alpha}}{\longrightarrow} \boldsymbol{X}_{\mathbf{4}} \)
If atomic number and atomic mass
number of \( X \) are respectively 72 and \( 180, \) what are the corresponding values
for \( \boldsymbol{X}_{4} ? \)
A .69,172
B. 69,176
c. 71,176
D. 70,172
| 3 |
Physics
|
What would be the pH of an aqueous
solution of \( 1 N \) tribasic acid?
A. 3
B.
\( c \cdot 0 \)
D. 1.5
| 1 |
Chemistry
|
Value based questions. What would be expected to happen if:
you forget to add cytokinin to the culture medium.
| 0 |
Biology
|
A spherical capacitor consists of two
concentric spherical conductors, held in
position by suitable insulating
supports (Fig.). Show that the
capacitance of a spherical capacitor is
given by \( c=\frac{4 \pi \epsilon_{0} r_{1} r_{2}}{r_{1}-r_{2}} \)
where \( r_{1} \) and \( r_{2} \) are the radii of outer
and inner spheres, respectively.
| 3 |
Physics
|
According to Einstein's theory of relativity, mass can be converted into energy and vice-versa. The lightest elementary particles, taken to be the electron, has a mass equivalent to
\( 0.51 M e V \) of energy. Then we can say
that
This question has multiple correct options
A. The minimum amount of energy available through conversion of mass into energy is \( 1.02 \mathrm{MeV} \)
B. The least energy of a \( \gamma- \)ray photon that can be converted into mass is \( 1.02 \mathrm{MeV} \)
c. Whereas the minimum energy released by conversion of mass into energy is \( 1.02 \mathrm{MeV} \), it is only a \( \gamma-\mathrm{ray} \) photon of energy \( 0.51 \mathrm{MeV} \) and above that can be converted into mass
D. Whereas the minimum energy released by conversion of mass into energy is \( 0.51 \mathrm{MeV} \), it is only a \( \gamma-\mathrm{ray} \) photon of energy \( 1.02 \mathrm{MeV} \) and above that can be converted into mass
| 3 |
Physics
|
In ancient India, the shapes of altars used for house hold rituals were
A. squares and circles
B. triangles and rectangles
c. trapeziums and pyramids
D. rectangles and squares
| 2 |
Maths
|
Which one of the following statements
is correct?
A. At present it is not possible to grow maize without chemical fertilizers.
B. Extensive use of chemical fertilizer may lead to eutrophication of nearby water bodies.
C. Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants.
D. Cyanobacteria such as Anabaena and Nostoc are important mobilizers of phosphates and potassium for plant nutrition in the soil.
| 0 |
Biology
|
One cyclic acetal form of D-galactose is
shown
Which atom is the anomeric carbon?
\( \mathbf{A} \cdot \) Atom \( A \)
B. Atom B
c. Atom \( c \)
D. Atom D
E. Atom E
\( F . \) Atom \( F \)
| 1 |
Chemistry
|
For \( \boldsymbol{x} \boldsymbol{\epsilon} \boldsymbol{R}, \boldsymbol{x} \neq \boldsymbol{0}, \) if \( \boldsymbol{y}(\boldsymbol{x}) \) is a
differentiable function such that
\( \boldsymbol{x} \int_{1}^{x} \boldsymbol{y}(\boldsymbol{t}) \boldsymbol{d} \boldsymbol{t}=(\boldsymbol{x}+\mathbf{1}) \int_{1}^{\boldsymbol{x}} \boldsymbol{t} \boldsymbol{y}(\boldsymbol{t}) \boldsymbol{d} \boldsymbol{t}, \) then
\( \boldsymbol{y}(\boldsymbol{x}) \) equals:
(Where \( C \) is a constant)
\( ^{A} \cdot_{C x^{3} e^{\frac{1}{x}}} \)
в. \( \frac{c}{x^{2}} e^{-\frac{1}{x}} \)
c. \( \frac{c}{x} e^{-\frac{1}{x}} \)
D. \( \frac{c}{x^{3}} e^{-\frac{1}{x}} \)
| 2 |
Maths
|
How does the atomic hydrogen or oxy-
hydrogen torch function for cutting and welding purposes? Explain.
| 1 |
Chemistry
|
Temperature of core of earth is equal to
\( 3727^{0} C . \) This temperature in Kelvins is
equal to:
A . \( 4000 K \)
в. \( 3727 K \)
c. \( 3454 K \)
D. none of the above
| 3 |
Physics
|
A particle of mass \( 4 m \) which is at rest
explodes into three fragments. Two of the fragments each of mass \( m \) are
found to move with a speed \( v \) each in
mutually perpendicular directions. The total energy released in the process of explosion is
| 3 |
Physics
|
\( A 26 \mathrm{ml} \) of \( N-N a_{2} C O_{3} \) solution is
neutralized by the solutions of acids \( A \) and \( \mathrm{B} \) in different experiments. The volumes of the acids \( A \) and \( B \) required
were \( 10 m l \) and \( 40 m l \), respectively. How
many volumes of \( A \) and \( B \) are to be mixed in order to prepare 1 litre of normal acid solution?
A \( .179 .4,820.6 \)
B. 820.6,179.4
c. 500,500
D. 474.3,525.7
| 1 |
Chemistry
|
What is the IUPAC name of \( \boldsymbol{C H}_{3}- \)
\( \boldsymbol{C H}_{2}-\boldsymbol{C H O} \)
| 1 |
Chemistry
|
Multiple Choice Questions Which statement is correct for pond
ecosystem
A. Pyramid of numbers is upright
B. Pyramid of mass is inverted
c. Pyramid of energy is upright
D. All the above
| 0 |
Biology
|
A bullet of mass \( m \) is fired from the
gun, the acceleration of the bullet is
A. greater than the acceleration of the gun
B. equal to the acceleration of the gun
C. equal but opposite to the acceleration of the gun
D. directly proportional to the mass of the bullet
E. inversely proportional to the force of the bullet
| 3 |
Physics
|
Consider a current carrying coil placed in a magnetic field. What are the requirements for induced current to
flow as per electromagnetic induction
A . Coil of wire carrying current
B. Change in magnetic field associated with the coil
c. Both A and B
D. None
| 3 |
Physics
|
How many minimum number of
coplanar vectors which represent same physical quantity having different magnitudes can be added to give zero
resultant.
A . (A) 2
в. (В) 3
\( c \cdot(c) 4 \)
D. (D) 5
| 3 |
Physics
|
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