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Cube of odd natural number is
number
A . odd
B. even
c. negative
D. prime | 2 | Maths |
A bullet is fired at a target with a velocity \( 80 \mathrm{m} / \mathrm{s} \) and penetrates \( 50 \mathrm{cm} \) into it. If this bullet were fired into a
target \( 25 \mathrm{cm} \) thick with equal velocity, with what velocity would it emerge, supposing the resistance to be uniform
and the same in both the cases?
A. \( \sqrt{80} \mathrm{m} / \mathrm{s} \)
в. \( \frac{40}{\sqrt{2}} m / s \)
c. \( 40 m / s \)
D. \( 40 \sqrt{2} \mathrm{m} / \mathrm{s} \) | 3 | Physics |
What will be the major product when 2 -
amino propane is treated with nitrous
acid?
A. \( 1- \) Propanol
B . \( 2- \) Propanol
c. Propene
D. Cyclopropane | 1 | Chemistry |
Which of the following process is not responsible for the presence of electric charge on the sol particles?
A. Electron capture by sol particles
B. Adsorption of ionic species from solution
C. Formation of Helmholtz electrical double layer
D. Absorption of ionic species from solution | 1 | Chemistry |
Differentiate the following functions
with respect to \( \boldsymbol{x} \) \( \sin ^{-1}\left\{\frac{\sin x+\cos x}{\sqrt{2}}\right\}, \frac{\pi}{4}<x<\frac{3 \pi}{4} \) | 2 | Maths |
Which element among the Lanthanides has the smallest atomic radius?
A. Cerium
B. Lutetium
c. Europium
D. Gadolinium. | 1 | Chemistry |
What is the correct name of \( I F_{7} ? \)
A. Iron heptafluoride
B. lodine heptafluoride
c. lodine septafluoride
D. Iron (IV) septafluoride | 1 | Chemistry |
Find the intervals in which the following functions are increasing or decreasing \( f(x)=10-6 x-2 x^{2} \) | 2 | Maths |
n which of the following cases the pairs of triangles are similar? Write the similarity criterion used by you for answering the question and also write the pairs of similar triangles in
the symbolic form | 2 | Maths |
If \( g \) is the acceleration due to gravity on
the Earth' surface, find the gain in
potential energy of a body of mass \( m \) when taken from the surface of Earth at
a height equal to the radius \( R \) of the
Earth. | 3 | Physics |
Write the middle terms in the
expansion of \( \left(\frac{3 x}{7}-2 y\right)^{10} \) | 2 | Maths |
How many triangles can be drawn having its angles as \( 53^{\circ}, 64^{\circ} \) and \( 63^{\circ} ? \)
\( \mathbf{A} \cdot \mathbf{1} \)
B. 2
c. None
D. More than 2 | 2 | Maths |
\( \mathbf{A} \)
1 kg body slides from the point \( A \) (see figure), along a horizontal track with an initial speed of \( 6 m s^{-1}, \) towards a weightless horizontal spring of length
\( 2 m \) and force constant \( 4 N m^{-1} \). The
part \( A B \) of the track is frictionless and
the part \( B C \) has the coefficients of
static and dynamic friction as 0.22 and
\( 0.2, \) respectively. Find the total distance
through which the block moves, before
it comes to rest completely \( .(g= \)
\( 10 m s^{-2} \) ), if \( A B=4 m \) and \( B D= \)
\( \mathbf{4 . 2 8 m} \) | 3 | Physics |
Which of the following is correct for the
given structure?
A. These are small structures which work like oars
B. It is covered with plasma membrane
C. Its core is called axoneme
D. All of these | 0 | Biology |
Simplify:\( \int x \ell n \sqrt{x} d x \) | 2 | Maths |
Number of teeth which are
monophyodont in man are
A . 4
B. 22
c. 32
D. 12 | 0 | Biology |
The angular momentum of an electron in an orbit is quantized because it is a necessary condition for the compatibility with
A. Wave nature of electron
B. Particle nature of electron
c. Pauli's exclusion behaviour
D. None of these | 3 | Physics |
What is Short Sightedness? | 3 | Physics |
Which of the following is not a property of an ionic compound?
A. Soft and flexible
B. Hard and brittle
c. crystal lattice structure
D. Conducts electricity when dissolved in water
E. Good insulator when solid | 1 | Chemistry |
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