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Pollen tube of gymnosperms is
commonly
A. Unbranched and rich in starch
B. Branched and lack starch
C. Branched and rich in starch
D. Unbranched as well as lack starch
| 0 |
Biology
|
A Parallel platecapacitor made of circular plates each of radius \( \boldsymbol{R}= \)
\( 6.0 \mathrm{cm} \) has a capacitance \( 100 \mathrm{pF} \) is
connected to \( 230 \mathrm{V} \) of \( \mathrm{AC} \) supply of 300 rad/sec.frequency. The rms value of
displacement current
A. \( 6.9 \mu A \)
B . \( 2.3 \mu A \)
c. \( 9.2 \mu A \)
D. \( 4.6 \mu A \)
| 3 |
Physics
|
Use the given Venn-diagram to find: B -
4
3. 10
\( c \)
P
| 2 |
Maths
|
Write any three distinctions between \( p \) type and n-type semiconductor
| 3 |
Physics
|
The surface area of three conterminous
faces of a furniture is \( 5,10,20 \mathrm{q} . \mathrm{cm} \) respectively. Find the volume of the
cuboid.
A \( \cdot 2 \sqrt{10} \mathrm{cm}^{3} \)
B . \( 20 \sqrt{10} \mathrm{cm}^{3} \)
c. \( 40 \sqrt{10} \mathrm{cm}^{3} \)
D. \( 10 \sqrt{10} \mathrm{cm}^{3} \)
| 2 |
Maths
|
27 metal balls each of radius r are
melted together to form one big sphere of radius R. Then the ratio of surface
area of the big sphere to that of a ball is
A . 9: 1
B. 3: 2
c. \( \sqrt{27}: \sqrt{5} \)
D. \( \sqrt{3}: 1 \)
| 2 |
Maths
|
A cubical ball is taken to a depth of \( 200 \mathrm{m} \) in a sea. The decrease in volume
observed to be \( 0.1 \% \). The bulk modulus of
the ball is \( \left(10=m s^{-2}\right) \)
\( \begin{array}{ll}\text { A. } 2 \times 10^{7} & \text { Pa } \\ a\end{array} \)
В. \( 2 \times 10^{6} \) Ра
C \( .2 .1 \times 10^{9} \) Pa
D. \( 1.2 \times 10^{9} \) Pa
| 3 |
Physics
|
The converse of the statement "if \( \boldsymbol{p}<\boldsymbol{q} \)
then \( p-x<q-x^{\prime \prime} \) is :
A. If \( p<q \), then \( p-x>q-x \)
B. If \( p>q \), then \( p-x>q-x \)
C. If \( p-x>q-x \), then \( p>q \)
D. If \( p-x<q-x \), then \( p<q \)
| 2 |
Maths
|
Find out the wavelength of the electron
orbiting in the ground state of hydrogen
atom
| 3 |
Physics
|
Which of the following reagents maybe used to distinguish between but-2-yne and but-1-yne.
\( \mathbf{A} \cdot B r_{2} \) in \( C C l_{4} \)
B. Dilute \( K M n O_{4} \)
c. concentrated \( H_{2} S O_{4} \)
D. Ammonical \( C u C l \)
| 1 |
Chemistry
|
The one aspect, which is not a salient feature of genetic code, is its being
A. Ambiguous
B. Universal
c. specific
D. Degenerate
| 0 |
Biology
|
A saprophytic bryophyte found in the Himalayas is
A. Sphagnum
B. Marchantia
c. Parella
D. Buxbaumia
| 0 |
Biology
|
A toy car released with the same initial
speed will travel farthest on:
A. muddy surface.
B. polished marble surface
c. cemented surface
D. brick surface
| 3 |
Physics
|
An ideal mirror:
A. Absorbs all the amount of light incident on it
B. Refracts all the light
C. Reflects all the light
D. None of the above
| 3 |
Physics
|
Which of the following is the worst conductor of heat
(A) Asbestos
(B) Rubber
(B) Plastic
(C) Graphite
| 3 |
Physics
|
What is the total number of sigma bonds and pi bonds in the following
molecules? \( \boldsymbol{C}_{2} \boldsymbol{H}_{3} \boldsymbol{C l}, \boldsymbol{C H}_{2} \boldsymbol{C l}_{2}, \boldsymbol{H}_{3} \boldsymbol{C}-\dot{\boldsymbol{C}}=\stackrel{\boldsymbol{H}}{\boldsymbol{C}}- \)
\( \boldsymbol{C} \equiv \boldsymbol{C}-\boldsymbol{H} \)
| 1 |
Chemistry
|
Sweat contains
A. Urea
B. Water
c. Sodium chloride
D. All of the above
| 0 |
Biology
|
Which sublevel is filled just before \( 5 f ? \)
A . \( 4 f \)
B. \( 7 s \)
c. \( 5 d \)
D. \( 6 d \)
| 1 |
Chemistry
|
If the distance between (8,0) and \( A \) is 7
then coordinates of the point \( A \) can not
be
A. (8,-7)
B. (8,7)
\( c \cdot(1,0) \)
\( D \cdot(0,-8) \)
| 2 |
Maths
|
Natural rubber is not used in making
footwear for polar regions because:
A. natural rubber becomes soft at temperature lower \( \operatorname{than} 10^{\circ} C \)
B. natural rubber becomes brittle at temperature lower \( \operatorname{than} 10^{\circ} C \)
C . natural rubber melts at temperature lower than \( 10^{\circ} \mathrm{C} \)
D. natural rubber becomes stronger at temperature lower \( \operatorname{than} 10^{\circ} C \)
| 1 |
Chemistry
|
Functional kidney of frog's tadpole is
A. Pronephros
B. Mesonephros
c. Holonephros
D. Metanephros
| 0 |
Biology
|
If in two circles, arcs of the same length
subtend angles \( 60^{\circ} \) and \( 75^{\circ} \) at
the centre, find the ratio of their radii.
| 2 |
Maths
|
Write three numbers whose decimal
expansions are non terminating and non recurring
| 2 |
Maths
|
Find the area of the shaded segment.
A . 11
B. 12
c. 13
D. 14
| 2 |
Maths
|
In Kjeldahl's method of estimation of
nitrogen, \( K_{2} S O_{4} \) acts as a/an:
A. oxidising agent
B. catalytic agent
c. hydrolysing agent
D. boiling point elevator
| 1 |
Chemistry
|
If the frequency of an A.C is made 4 times of its initial value, the inductive
reactance will
\( A \cdot \) be 4 times
B. be 2 times
c. be half
D. remain the same
| 3 |
Physics
|
The secondary windings of a transformer in which the voltage is stepped down are usually made of thicker wire than the primary. Explain why.
| 3 |
Physics
|
In a series LCR circuit at resonance, the
appiled ac voltage is \( 220 \mathrm{V} \). If bthe potential drop across the inductance is \( 110 V, \) then the potential drop across the resistance is
A \( \cdot 110 \sqrt{2} V \)
B. \( 110 V \)
c. \( 220 V \)
D. \( 220 \sqrt{2} V \)
| 3 |
Physics
|
Find the value of the determinant with
out expanding:
\( \left|\begin{array}{lll}5 & 2 & 3 \\ 7 & 3 & 4 \\ 9 & 4 & 5\end{array}\right| \)
| 2 |
Maths
|
The angle of dip at a certain place where the horizontal and vertical components of the earth's magnetic field are equal
is?
A \( .30^{\circ} \)
B . \( 75^{\circ} \)
\( c \cdot 60^{\circ} \)
D. \( 45^{\circ} \)
| 3 |
Physics
|
A wire of length \( L \) and mass per unit
length \( 6.0 \times 10^{-3} k g m^{-1} \) is put under
tension of \( 540 \mathrm{N} \). Two consecutive
frequencies that it resonates at are:
\( 420 H z \) and \( 490 H z . \) Then \( L \) in meters
is:
\( \mathbf{A} \cdot 1.1 m \)
B. \( 5.1 \mathrm{m} \)
c. \( 2.1 m \)
D. \( 8.1 \mathrm{m} \)
| 3 |
Physics
|
Which of the following are endothermic
processes?
This question has multiple correct options
A. combustion of glucose
B. decomposition of water
C. dehydrogenation of ethane to ethene
D. conversion of graphite to diamond
| 1 |
Chemistry
|
The graph of \( 2 x+3 y=6 \) is
represented by
\( A \)
3
c. ॥
D. IV
| 2 |
Maths
|
When a volatile liquid is introduced into an evacuated closed vessel at a
particular temperature, both evaporation and condensation take place simultaneously. The system reaches equilibrium state when:
A. the liquid is completely transformed into the corresponding vapour
B. equal amounts of liquid and vapour are present in the
C. the rate of evaporation becomes equal to the rate of condensation
D. liquid cannot be converted into vapour and vice versa
| 1 |
Chemistry
|
The electromagnetic waves of frequency
range 100 to \( 300 G H z \) are used in
| 3 |
Physics
|
\( A 2 \times 2 \) matrix whose elements \( a_{i j} \) are
given by \( a_{i j}=i-j \) is
\( \mathbf{A} \cdot\left[\begin{array}{ll}0 & 1 \\ 1 & 0\end{array}\right] \)
B. \( \left[\begin{array}{cc}0 & -1 \\ 1 & 0\end{array}\right] \)
\( \mathbf{c} \cdot\left[\begin{array}{cc}-1 & 0 \\ 0 & 1\end{array}\right] \)
D. \( \left[\begin{array}{cc}0 & 1 \\ -1 & 0\end{array}\right] \)
| 2 |
Maths
|
The focal length of a thin biconvex lens is \( 20 \mathrm{cm} . \) when an object is moved from a distance of \( 25 \mathrm{cm} \) in front of it to 50
\( \mathrm{cm}, \) the magnification of its image
changes from \( \boldsymbol{m}_{25} \) to \( \boldsymbol{m}_{50} . \) The ratio of
\( \boldsymbol{m}_{25} \) to \( \boldsymbol{m}_{50} \) is :
\( A \cdot 2 \)
B. 4
\( c \cdot 6 \)
D. 8
| 3 |
Physics
|
Find out which of the following sequence are arithmetic progression. For those which are arithmetic
progression, find out the common difference. \( \frac{1}{2}, \frac{1}{4}, \frac{1}{6}, \frac{1}{8}, \dots \dots \)
| 2 |
Maths
|
The coordinates of a point on the line ye where perpendicular from the line \( 3 x+4 y=12 \) is 4 units, are
A \( \cdot\left(\frac{3}{7}, \frac{5}{7}\right) \)
в. \( \left(\frac{3}{2}, \frac{3}{2}\right) \)
\( c \cdot\left(-\frac{8}{7},-\frac{8}{7}\right) \)
D. \( \left(\frac{32}{7},-\frac{32}{7}\right) \)
| 2 |
Maths
|
In a cuboid, if the sum of the lenghth of
edges is represented by \( S \), the total
surface area is represented by \( \boldsymbol{T} \) and the length of diagonal is represented by
\( D, \) then the value of \( D \) is
A \( \cdot \sqrt{\frac{52}{4}-T} \)
В. \( \sqrt{\frac{S^{2}}{14}-T} \)
c. \( \sqrt{\frac{s^{2}}{16}+T} \)
D. \( \sqrt{\frac{S^{2}}{16}-T} \)
| 2 |
Maths
|
Which of these cell organelles stores starch grains and oil drops?
A. Mitochondria
B. Leucoplast
c. chloroplast
D. Ribosome
| 0 |
Biology
|
Two parallel beams of positrons moving
in the same direction will
A. Repel each other
B. Will not interact with each other
c. Attract each other
D. Be deflected normal to the plane containing the two beams
| 3 |
Physics
|
BNHS is abbreviation of
A. Banaras Natural history Society
B. Bombay Natural History Society
C. Botanical North Himalayan Survey
D. Biological Natural History Society
| 0 |
Biology
|
If natural uranium is used as fuel, the moderator used will be
A. Ordinary water
B. Graphite
c. Boron
D. Heavy water
| 3 |
Physics
|
Consider the linear inequations and
solve them graphically:
\( \mathbf{3} \boldsymbol{x}-\boldsymbol{y}-\mathbf{2}>\mathbf{0} ; \boldsymbol{x}+\boldsymbol{y} \leq \mathbf{4} ; \boldsymbol{x}> \)
\( \mathbf{0} ; \boldsymbol{y} \geq \mathbf{0} \)
The solution region of these inequations
is a convex polygon with sides.
\( A \cdot 3 \)
B. 4
\( c .5 \)
D. 7
| 2 |
Maths
|
\( (A): \int e^{x}\left(\log x+x^{-2}\right) d x= \)
\( e^{x}\left(\log x-\frac{1}{x}\right)+c \)
\( (\mathrm{R}): \int e^{x}\left[\boldsymbol{f}(\boldsymbol{x})+\boldsymbol{f}^{\prime}(\boldsymbol{x})\right] \boldsymbol{d} \boldsymbol{x}=\boldsymbol{e}^{\boldsymbol{x}} \boldsymbol{f}(\boldsymbol{x})+\boldsymbol{c} \)
A. Both A and R are true and R is the correct explanation
of
B. Both A and R are true but R is not correct explanation of
c. \( A \) is true but \( R \) is false
D. A is false but R is true
| 2 |
Maths
|
Sum of two integers is \( +62 . \) If one of the integer is \( -48, \) then the other integer is
A \( .+14 \)
в. -14
c. -110
D. +110
| 2 |
Maths
|
The function \( \boldsymbol{f}: \boldsymbol{R} \rightarrow \boldsymbol{R}, \boldsymbol{f}(\boldsymbol{x})=\boldsymbol{x}^{2} \) is
A. injective but not surjective
B. surjective but not injective
c. injective as well as surjective
D. neither injective nor surjective
| 2 |
Maths
|
Which one of the following could not be liberated from a suitable electrolyte by the passage of 0.25 faraday of electricity through that electrolyte
A. 0.25 mole of \( \mathrm{Ag} \)
B. \( 16 g \) m of \( \mathrm{Cu} \)
\( c \cdot 2 g m \) of \( 0_{2}(g) \)
D. 2.8ltrs of H at stp
| 1 |
Chemistry
|
Two soap bubbles of different radii \( \boldsymbol{R}_{1} \)
and \( R_{2}(<R) \) coalesee to form an
interface of radius \( R, \) The correct value
of R is
A. \( R=R_{1}-R_{2} \)
в. \( R=\frac{R_{1}+R_{2}}{2} \)
c. \( \frac{1}{R}=\frac{1}{R_{2}}-\frac{1}{R_{1}} \)
D. \( \frac{1}{R}=\frac{1}{R_{2}}+\frac{1}{R_{1}} \)
| 3 |
Physics
|
True fish possess gills and fins. Which one of the following is not a true fish?
A. Carassius
B. Hythalamincthyes
c. Hippocampus
D. Lepisma
| 0 |
Biology
|
When we cool a gas below its condensation point, the K.E. of its
molecules:
A . increases
B. decreases
c. remains the same
D. first decreases then increases
| 3 |
Physics
|
\( \operatorname{Let} A=\{1,2,3,4\} \) and \( B=\{x, y, z\} \)
Consider the subset \( \boldsymbol{R}= \)
\( \{(1, x),(1, y),(2, z),(3, x)\} \) of \( A \times B . \) Is
R, a relation from A to B? If yes, find domain and range of R. Draw arrow
diagram of \( R \) and represent \( R \) in a tabular form.
| 2 |
Maths
|
Rochelle salt is :
A. sodium tartarate
B. sodium potassium tartarate
c. ammonium tartarate
D. potassium ammonium tartarate
| 1 |
Chemistry
|
Sirius can be located by which constellation?
A. The great Bear
B. Cassiopeia
c. Orion
D. Leo Major
| 3 |
Physics
|
Write the following relation in the Roster
form and hence find its domain and
range \( R=\left\{\left(a, a^{2}\right) / a \) is a prime \right.
number less than \( 15\} \)
| 2 |
Maths
|
Prove that:
\( \int \frac{d x}{x^{5}} \)
| 2 |
Maths
|
Number of roots of the equation \( z^{10}- \) \( z^{5}-992=0 \) where real parts are
negative is
\( \mathbf{A} \cdot \mathbf{3} \)
B. 4
c. 5
D. 6
| 2 |
Maths
|
An atom which has a mass number of 14
and has 8 neutrons is an:
A. isotope of oxygen
B. isobar of oxygen
c. isotopes of carbon
D. isobar of carbon
| 3 |
Physics
|
Explain why phenol in water or polarprotic give \( \boldsymbol{O}-\boldsymbol{P} \) tribromo
product but in nonpolar medium like
\( C S_{2} C C l_{2} \) image ortho or \( p \) bromo product?
| 1 |
Chemistry
|
\( A B C D \) and \( P Q R C \) are rectangle where
\( Q \) is the mid-point of \( A C . \) Prove that
\( \boldsymbol{D} \boldsymbol{P}=\boldsymbol{P C} \)
| 2 |
Maths
|
Why is bat included under mammals?
| 0 |
Biology
|
At a party, 8 bottles of soft drink are
served for every batch of 5 children. How
many bottles would be served if 40
children were present at the party?
| 2 |
Maths
|
A particle is moving in a straight line with constant acceleration 'a' and
initial velocity \( v_{0} . \) Average velocity
during first \( t \) second is
A \( \cdot v_{0}+\frac{1}{2} \mathrm{at} \)
B. \( v_{0}+a t \)
c. \( \frac{v_{0}+a t}{2} \)
D. \( \frac{v_{0}}{2} \)
| 3 |
Physics
|
Consider the following reaction. The product (A) is:
\( A \)
в.
\( c \)
\( D \)
| 1 |
Chemistry
|
A ring takes time \( t_{1} \) in slipping down an inclined plane of length \( L \), whereas it
takes time \( t_{2} \) in rolling down the same
plane. The ratio of \( t_{1} \) and \( t_{2} \) is :
B . \( 1: 2^{\frac{1}{2}} \)
\( c \cdot 1: 2 \)
D. \( 1: 2^{\frac{1}{7}} \)
| 3 |
Physics
|
The force of attraction between the two
bodies \( (A, B) \) depend upon:
A. mass of \( A \)
B. mass of \( B \)
c. distance between them
D. all of the above
| 3 |
Physics
|
Which of the following is easier to hold
with a greasy palm?
A . a glass tumbler
B. a polished crockery piece
c. a metal container
D. an earthen pot
| 3 |
Physics
|
Which pair is incorrect?
A. Patella - knee cap
B. Malleus - hammer bone
C. Sternum - chest bone
D. Stapes - anvil bone
| 0 |
Biology
|
Find the area of the triangle whose
vertices are:
¡) (2,3),(-1,0),(2,-4)
ii) (-5,-1),(3,-5),(5,2)
| 2 |
Maths
|
A particle moves in a straight path such that its velocity is always 4 times its acceleration. if its velocity at time \( t=0 \) is \( 2 m / s e c, \) its velocity at \( T=2 s e c, \) is
A \( . \sqrt{2 e} m / \) sec
B . \( 2 \sqrt{e} m / \) sec
c. \( \frac{\sqrt{e}}{2} m / \) sec
D. \( \frac{2}{\sqrt{e}} m / \) sec
| 3 |
Physics
|
The refractive index of a prism is measured using three lines of a
mercury vapor lamp. If \( \mu_{1}, \mu_{2} \) and \( \mu_{3} \) are
the measured refractive indices for
these green, blue and yellow lines respectively, then
A \( \cdot \mu_{2}>\mu_{3}>\mu_{1} \)
В . \( \mu_{2}>\mu_{1}>\mu_{3} \)
c. \( \mu_{3}>\mu_{2}>\mu_{1} \)
D. \( \mu_{1}>\mu_{2}>\mu_{3} \)
| 3 |
Physics
|
A metal M of equivalent mass E forms
an oxide of molecular formula \( M_{x} O_{v} \)
The atomic mass of the metal is given by the correct equation.
\( A \cdot 2 E(y / x) \)
B. xyE
\( c \cdot E / y \)
D. y/E
E. E/2 (x/y)
| 3 |
Physics
|
What are the characteristics of heating element used in electric heating
device?
| 3 |
Physics
|
A solid spherical non-conductor of radius \( 5 \mathrm{cm} \) has the potential of \( 50 \mathrm{V} \) at its outer surface. The potential at its center is
A .100
B. 75 v
c. zero
D. 50 v
| 3 |
Physics
|
Earth pulls every object towards it with a force called:
A. Friction
B. Gravity
c. Tension
D. Collision
| 3 |
Physics
|
If all the angles of a triangle measure
less than \( 90^{\circ} \), then such a triangle is
called
A. Right angled triangle
B. Obtuse angled triangle
c. Acute angled triangle
D. None of these
| 2 |
Maths
|
Which of the following is called Berthelot's salt?
\( \mathbf{A} \cdot\left(N a P O_{3}\right)_{6} \)
в. NaOCl
c. \( K C l O_{3} \)
D. \( K H F_{2} \)
| 1 |
Chemistry
|
Which of the following is called energy currency of the cell?
A . ATP
в. мАDР \( H_{2} \)
\( \mathbf{c} \cdot C_{6} H_{12} O_{6} \)
D. \( C_{2} H_{5} \) ОН
| 0 |
Biology
|
Q Type your question-
where the symbols have their usual
meanings. Which of the following
graphs correctly depicts this variation?
\( A \)
\( (a) \)
в.
(b)
\( c \)
\( (c) \)
D. None of thes
| 3 |
Physics
|
Solve : 2 kL \( _{\text {一一一一一 }} \) hL \( = \)
daL=
| 2 |
Maths
|
What are the materials which contain
at least two pure substances and show
the properties of their constituents called?
A. A compound
B. An element
c. A mixture
D. A solution
| 1 |
Chemistry
|
The ratio in which the plane \( \vec{r} .(\hat{i}-2 \hat{j}+ \) \( \mathbf{3} \hat{k})=17 \) divides the line joining the points \( (-2 \hat{i}+4 \hat{j}+7 \hat{k}) \) and \( (3 \hat{i}-5 \hat{j}+ \)
\( \mathbf{8} \hat{\boldsymbol{k}}) \) is
A .1: 5
B. 1: 10
\( c .3: 5 \)
D. 3: 10
| 2 |
Maths
|
Organic and Inorganic compounds differ from each other in terms of :
A. melting point
B. catenation.
c. isomerism.
D. All of the above.
| 1 |
Chemistry
|
The activity of a catalyst is due to the presence of active centres on it.
A. True
B. False
| 1 |
Chemistry
|
In a Geiger Marsden experiment, calculate the distance of closest
approach to the nucleus of \( Z=\mathbf{7 5} \)
when an \( \alpha \) -particle of \( 5 M e V \) energy impinges on it before it comes momentarily to rest and reverse its direction.
How will the distance of closest
approach be affected when the kinetic energy of the \( \alpha \) -particle is doubled?
| 3 |
Physics
|
Increasing strength of H-bonding \( (\boldsymbol{X}- \)
\( --\boldsymbol{H}-\boldsymbol{X}) \) in \( \boldsymbol{S}, \boldsymbol{O}, \boldsymbol{F}, \boldsymbol{C l}, \boldsymbol{N} \) is:
A. \( C l<S<N<O<F \)
в. \( N<C l<S<O<F \)
c. \( S<C l<N<O<F \)
D. \( S<N<C l<O<F \)
| 1 |
Chemistry
|
If \( \arg z<0 \) then \( \arg (-z)-\arg z \) is
equal to
A . \( \pi \)
в. \( -\pi \)
\( c \cdot-\frac{\pi}{2} \)
D.
| 2 |
Maths
|
Outer electronic configurations of
\( \boldsymbol{K}, \boldsymbol{C u}, \) and \( \boldsymbol{C r} \) are respectively :
A \( \cdot 4 s^{1}, 3 d^{10}, 3 d^{5} \)
B . \( 4 s^{2}, 3 d^{10}, 3 d^{4} \)
c. \( 4 s^{1}, 3 d^{9}, 3 d^{4} \)
D・ \( 4 s^{2}, 3 d^{9}, 3 d^{4} \)
| 1 |
Chemistry
|
Currents \( I_{1} \) and \( I_{2} \) flow in the wires
shown in figure. The field is zero at
distance \( x \) to the right of \( O . \) Then
\( x=\left(\frac{I_{1}}{I_{2}}\right) a \)
3. \( x=\left(\frac{I_{2}}{I_{1}}\right) a \)
\( x_{x}=\left(\frac{I_{1}-I_{2}}{I_{1}+I_{2}}\right) a \)
\( x=\left(\frac{I_{1}+I_{2}}{I_{1}-I_{2}}\right) a \)
| 3 |
Physics
|
A line source emits a cylindrical expanding wave. If the medium absorbs no energy then the amplitude will vary with distance \( r \) from the source as
proportional to
A \( \cdot r^{-1} \)
B . \( r^{-2} \)
\( c \cdot r^{-1 / 2} \)
\( \mathbf{D} \cdot r^{1 / 2} \)
| 3 |
Physics
|
mole of amino cobalt chloride on
treating with an excess of \( A g N O_{3} \)
solution gives 2 moles of \( A g C l \)
precipitate. The number of \( C l^{-} \) ions
which satisfies both primary and secondary valency of cobalt in the complex is:
A .2
B. 3
\( c . \)
D.
| 1 |
Chemistry
|
The field created by the current in the
bop at point \( C \) will be
\( A \cdot-\frac{\mu_{0}}{4 \pi} \hat{k} \)
B. \( -\frac{\mu_{0}}{8 \pi} \)
c. \( -\frac{\mu_{0} \sqrt{2}}{\pi} \)
D. non
| 3 |
Physics
|
Match the following and find the correct
pairs:
List List II
(a) Fleming's
(e) Direction of induced current left hand rule
(b) Right hand
(f) Magnitude and direction of thumb rule \( \quad \) magnetic induction
(c) Biot-Savart
(g) Direction of force due to law \( \quad \) magnetic induction
(d) Fleming's
(h) Direction of magnetic lines right hand rule due to current
\( A \cdot a-g, b-e, c-f, d-h \)
B. \( a-g, b-h, c-f, d-e \)
\( \mathbf{C} \cdot a-f, b-h, c-g, d-e \)
D. a-h, b-g, c-e, d-f
| 3 |
Physics
|
What is the effect on specific charge if the speed of electron increases?
A. Decreases
B. Increases
c. Remains same
D. None
| 1 |
Chemistry
|
Find \( \int \frac{d x}{x\left(x^{3}+1\right)^{2}} \)
| 2 |
Maths
|
Some gaseous equilibrium are following:
\( \boldsymbol{C O}+\boldsymbol{H}_{2} \boldsymbol{O} \stackrel{\boldsymbol{K}}{\rightleftharpoons} \boldsymbol{C O}_{2}+\boldsymbol{H}_{2} \)
\( 2 C O+O_{2} \stackrel{K_{1}}{\rightleftharpoons} 2 C O_{2} \)
\( 2 H_{2}+O_{2} \stackrel{K_{2}}{\rightleftharpoons} 2 H_{2} O \)
then find out the relation between
equilibrium constants :-
A \( \cdot K=K_{1} K_{2} \)
B. \( K=\left(K_{1} K_{2}\right)^{2} \)
C . \( K=\left(K_{1} K_{2}\right)^{-1 / 2} \)
D. \( K=\left(K_{1} / K_{2}\right)^{1 / 2} \)
| 1 |
Chemistry
|
\( \underbrace{g_{k_{n}}^{n} p_{n}} \)
| 1 |
Chemistry
|
Find the mean deviation about the
mean for the data
4,7,8,9,10,12,13,17
| 2 |
Maths
|
Ethyl alcohol exhibits acidic character on reacting with:
A . Acetic acid
B. Sodium metal
c. Hydrogen iodide
D. Acidic potassium dichromate
| 1 |
Chemistry
|
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