AkshitPareek2004/jee-question-analyzer-data huggingface dataset:
Subject: Physics
statement 1: In Young's experiment, the fringe width for dark fingers is different from that for white fringes. statement 2: In Young's double slit experiment the fringes are performed with a source of white light, then only black and bright fringes are observed.
A. If both statement 1 and statement 2 are true but statement 2 is the correct explanation of statement
B. If both statement 1 and statement 2 are true but statement 2 is not the correct explanation statemen
c. If statement 1 is true but statement 2 is false
D. If both the statement 1 and statement 2 are false
E. If statement 2 is true but statement 1 is false
Subject: Physics
The escape velocity for a rocket on the earth is \( 11.2 \mathrm{km} / \mathrm{sec} \). Its value on a planet where acceleration due to gravity
is twice that on the earth and the
diameter of the planet is twice that of the earth, will be (in \( k m / s e c \) ):
A . 11.2
B. 5.6
c. 22.4
D. 33.6
Subject: Chemistry
The following are some equations about Nernst equations.
I) For metal electrode: \( E=E^{0}- \)
\( \frac{2.303 R T}{n F} \log \frac{[M]}{\left[M^{n+}\right]} \)
II) For metal electrode: \( E=E^{0}+ \)
\( \frac{2.303 R T}{n F} \log c \)
III) For non-metal electrode: \( E=E^{0}- \)
\( \frac{0.059}{n} \log c\left[A^{n-}\right] \)
IV) For non-metal electrode: \( E=E^{0}- \)
\( \frac{2.303 R T}{n F} \log c\left[A^{n-}\right] \)
The correct answer is :
A. only I and III are correct
B. only II and IV are correct
C. only I and IV are correct
D. all are correct
Subject: Maths
A missile fired from ground level rises \( x \)
metres vertically upward in \( t \) second and \( \boldsymbol{x}=\mathbf{1 0 0 t}-\frac{\mathbf{2 5}}{\mathbf{2}} \boldsymbol{t}^{\mathbf{2}} \)
Find
(i) the initial velocity of the missile.
(ii) the time when the height of the
missile is a maximum
(iii) the maximum height reached and
(iv) the velocity with which the missile
strikes the ground.
Subject: 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. \( \Delta x . \Delta p<\frac{h}{4 \pi} \)
Subject: Maths
\( f(x)=\log \frac{(1+x)}{1-x} \) then \( f(\log (x))=? \)
A \( \cdot \log (1+\log x)-\log (1-\log x) \)
B. \( \log (1+\log x)+\log (1-\log x) \)
c. \( \log (1-\log x)-\log (1-\log x) \)
D. None of these
Subject: Chemistry
Reactio
Appearance

Dull gray solid \( \quad \) Dissolved Unknown metal #1 \( \quad \) with white \( \quad \) of clearga oxide coating
Solid; lustrous, Unkr smooth silvergray surface
The addition of dilute \( H N O_{3} \) to
unknown metal # 2 produced an orange
gas.What is the likely identity of this
gas?
\( \mathbf{A} \cdot C l_{2} \)
в. \( H_{2} \)
\( c \cdot O_{2} \)
D. \( N O_{2} \)
Subject: Physics
Sl unit of \( G \) is \( N m^{2} k g^{-2} . \) Which of the following can also be used as the Sl unit
of G?
A \( \cdot m^{3} k g^{-1} s^{-2} \)
B . \( m^{2} k g^{-2} s^{-1} \)
c. \( m k g^{-3} s^{-1} \)
D. \( m^{2} k g^{-3} s^{-2} \)
Subject: Chemistry
What is/are true statement?
This question has multiple correct options
A. lons of \( d \) -block elements are colored due to \( d-d \)
transition
B. Ions of \( f \) -block elements are colored due to \( f-f \)
transtition
\( ^{\mathbf{C}} \cdot\left[\operatorname{Sc}\left(H_{2} O\right)_{6}\right]^{3+},\left[T i\left(H_{2} O\right)_{6}\right]^{4+} \) are colored complexes.
D. \( C u^{+} \) is colorless ion.
Subject: Maths
Find the value of \( k \) so that
\( \boldsymbol{f}(\boldsymbol{x})\left\{\begin{array}{ll}\boldsymbol{k} \boldsymbol{x}+\mathbf{1} & \boldsymbol{i} \boldsymbol{f} \boldsymbol{x} \leq \boldsymbol{\pi} \\ \cos \boldsymbol{x} & \boldsymbol{i} \boldsymbol{f} \boldsymbol{x}>\pi\end{array}\right. \)
continuous at \( \boldsymbol{x}=\boldsymbol{\pi} \)
Subject: Physics
A parallel plate capacitor consists of circular plates with radius \( 10 \mathrm{cm} \)
separated by a distance of \( 0.5 m m . \) The capacitor is charged by an external source such that the electric field
between the plates changes at a rate \( 5 \times 10^{13} V m-1 s-1 . \) The displacement
current through the capacitor is
A \( .1 .4 m A \)
в. \( 14 m A \)
\( c .14 A \)
D. \( 1.4 A \)
Subject: Chemistry
The reaction of chlorine with \( \mathrm{CO} \) in the
presence of sun light gives:
A \( \cdot \mathrm{COCl}_{2} \)
в. \( \mathrm{co}_{2} \mathrm{cl}_{2} \)
c. HOCl
D. \( \mathrm{H}_{2} \mathrm{C} 1_{2} \mathrm{O}_{2} \)
Subject: Physics
The current voltage graph for a given
metallic wire at two
different temperatures \( T_{1} \) and \( T_{2} \) are
shown in given figure, which of the relation is correct from the following?
A \( \cdot T_{2}>T_{1} \)
в. \( T_{1}>T_{2} \)
c. \( T_{1}=T_{2} \)
D. none of these
Subject: Chemistry
A reaction has an activation energy of
\( 209 k J . m o l^{-1} . \) The rate increases 10
fold when the temperature is increased
from \( 27^{\circ} \mathrm{C} \) to \( X^{o} C . \) The temperature \( X \) is
closest to.[Gas constant, \( \boldsymbol{R}=\mathbf{8 . 3 1 4} \)
\( \left.\boldsymbol{J} \cdot \boldsymbol{m} \boldsymbol{o} \boldsymbol{l}^{-1} \boldsymbol{K}^{-1}\right] \)
A . 35
B . 40
c. 30
D. 45
Subject: Physics
If the displacement, velocity and acceleration of a particle at time \( t \) be \( x \) \( \mathbf{v} \) and \( f \) respectively, then which one is true?
A \( \cdot f=v^{3} \frac{d^{2} t}{d x^{2}} \)
B. \( f=-v^{3} \frac{d^{2} t}{d x^{2}} \)
c. \( f=v^{2} \frac{d^{2} t}{d x^{2}} \)
D. \( f=-v^{2} \frac{d^{2} t}{d x^{2}} \)
Subject: Chemistry
The functional isomer of
\( \boldsymbol{C H}_{3} \boldsymbol{C H}_{2} \boldsymbol{C H}_{2} \boldsymbol{O H} \)
\( \mathbf{A} \cdot C H_{3}-C H-C H_{3} \)
\( _{O H} \)
в. \( C H_{3} C O C H_{3} \)
c. \( C H_{3} O C H_{3} \)
D. \( C H_{3} O C H_{2} C H_{3} \)
Subject: Physics
A radioactive element X decays by the
sequence and with half life given below:
\( \boldsymbol{X} \frac{\boldsymbol{\alpha}}{\mathbf{3 0 m i n}} \boldsymbol{Y} \frac{\mathbf{2} \boldsymbol{\beta}}{\mathbf{2 d a y s}} \boldsymbol{Z} \)
which of the following statements about this system are correct?
A. After two hours, less than \( 10 \% \) of the initial \( x \) is left
B. An intermediate nuclide exists between Y and Z
c. Atomic number of \( x \) and \( z \) are same
D. The mass number of Y is greater than \( x \)
Subject: Maths
The distance moved by a particle travelling in a straight line in \( t \) seconds is given by \( s=45 t+11 t^{2}-t^{3} . \) The
time taken by the particle to come to
rest is
\( A \)
\( \frac{5}{3} \sec \)
B. 0 sec
\( c .9 \mathrm{sec} \)
D. \( _{\frac{3}{5}} \) sec
Subject: Physics
Assertion:At constant pressure when a
gas is heated from 40 to \( 41^{0} \mathrm{C} \), the increase in volume is \( \frac{1}{273} \) of its initial volume at \( 273 \mathrm{K} \)
Reason:Volume coefficient of gas is \( \frac{1}{273}^{0} C \)
A. Both assertion (A) and reason
(R) are correct and gives the correct explanation
B. Both assertion (A) and reason
(R) are correct but R doesnt give the correct explanation
C. A is true but R is false
D. A is false but R is true
Subject: Maths
If \( \int e^{x}(1+x) \sec ^{2}\left(x e^{x}\right) d x=f(x)+c \)
then \( \boldsymbol{f}(\boldsymbol{x})= \)
A \( \cdot \cos \left(x e^{x}\right) \)
B. \( \sin \left(x e^{x}\right) \)
c. \( 2 \tan ^{-1}(x) \)
D. \( \tan \left(x e^{x}\right) \)
Subject: Physics
The angle between \( \vec{V}_{1}=\hat{i}+2 \hat{j}+2 \hat{k} \)
and \( \vec{V}_{2}=2 \hat{i}+3 \hat{j}-4 \hat{k} \) is:
A \( \cdot 0^{\circ} \)
B . \( 45^{\circ} \)
\( c \cdot 90^{\circ} \)
D. \( 120^{\circ} \)
Subject: Chemistry
Which of the following constitutes a group of isoelectronic species?
A \( \cdot C O, N_{2}, O_{2}^{-} \)
в. \( N_{2}, C N^{-}, N O^{+} \)
\( \mathrm{c} \cdot O_{2}^{-}, N O, C_{2}^{2} \)
D. \( C l^{-}, A r, N A^{+} \)
E \( \cdot S^{2-}, C a^{2+}, C N^{-} \)
Subject: Physics
Consider the charge configuration and
a spherical Gaussian surface as shown
in the figure. When calculating the flux of the electric field over the spherical surface, the electric field will be?
\( \mathbf{A} \cdot \) Due to \( q_{2} \)
B. Only due to the positive charges
c. Due to all the charges
D. Due to \( +q_{1} \) and \( -q \)
Subject: Physics
Five blocks \( \boldsymbol{A}, \boldsymbol{B}, \boldsymbol{C}, \boldsymbol{D} \) \& \( \boldsymbol{E} \) of equal
masses but made of different
substances as shown in above figure,
are heated to \( 100^{\circ} \mathrm{C} \) and placed on
separate \( 10 k g \) blocks of ice that are at a
temperature of \( 0^{\circ} \mathrm{C} \). Identify which substance melts the greatest amount
of ice?
A. The substance with the lowest specific heat
B. The substance with the highest specific heat
C. The substance with the greatest surface area
D. The substance with the smallest surface area
E. The substance that started with the highest temperature
Subject: Chemistry
In which of the following pairs of solutions will the values of the Van't
Hoff factor be the same?
A \( \cdot_{0.05} \) M \( K_{4}\left[\text { Fe }(C N)_{6}\right] \) and 0.10 M FeSO\( _{4} \)
B. 0.20 М NaCl and 0.10 М Ва С\( l_{2} \),
c. \( _{0.05} \) M FeSO\( _{4}\left(N H_{4}\right)_{2} \) SO\( _{4} \). \( 6 H_{2} \) O and 0.02 M
КСl.М \( g C l_{2} .6 H_{2} O \)
D. All have same value
Subject: Chemistry
Statement \( 1:-273^{0} C \) is also known as
absolute zero.
Statement 2: \( ^{0} C=K+273 \)
A. Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1
B. Both the Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.
c. Statement 1 is correct but Statement 2 is not correct.
D. Statement 1 is not correct but Statement 2 is correct
E. Both the Statement 1 and Statement 2 are not correct
Subject: Physics
Assertion
A torch bulb give light if operated on \( A C \)
of same voltage and current as DC.
Reason

Heating effect is common to both AC
and DC.
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
Subject: Physics
A current of \( 2 A \) is flowing through a cell of e.m.f. \( 5 V \) and internal resistance
\( 0.5 \Omega \) from negative to positive electrode. If the potential of negative electrode is \( 10 V \), the potential of
positive electrode will be :-
A \( .5 V \)
\( V \)
B. 14 \( V \)
\( \mathrm{c} .15 \mathrm{V} \)
D. \( 16 V \)
Subject: Maths
\( f(x)=\left|\begin{array}{ccc}\cos x & x & 1 \\ 2 \sin x & x^{2} & 2 x \\ \tan x & x & 1\end{array}\right| . \) The value of
\( \lim _{x \rightarrow 0} \frac{f(x)}{x} \) is equal to
A . 1
B. -
\( c \cdot 0 \)
D. None of these
Subject: Maths
For vectors \( \vec{a} \& \vec{b} . \) Prove that \( |\overrightarrow{\boldsymbol{a}} \times \overrightarrow{\boldsymbol{b}}|^{2}=|\overrightarrow{\boldsymbol{a}}|^{2}|\overrightarrow{\boldsymbol{b}}|^{2}-|\overrightarrow{\boldsymbol{a}} \cdot \overrightarrow{\boldsymbol{b}}|^{2} \)
Subject: Maths
\( \int_{\frac{1}{\sqrt{3}}}^{0} \frac{\boldsymbol{d} \boldsymbol{x}}{\left(\mathbf{2} \boldsymbol{x}^{2}+\mathbf{1}\right) \sqrt{\boldsymbol{x}^{2}+\mathbf{1}}} \)
A \( \cdot-\tan ^{-1} \frac{1}{2} \)
B. \( \tan ^{-1} 1 \)
c. \( -\tan ^{-1} \frac{1}{3} \)
D. \( \tan ^{-1} \frac{1}{\sqrt{2}} \)
Subject: Maths
Let \( \boldsymbol{f} \) be an increasing function on \( [\boldsymbol{a}, \boldsymbol{b}] \) and \( g \) be a decreasing function on \( [a, b] \)
then on \( [a, b] \)
This question has multiple correct options
A. fog is a decreasing function.
B. gof is an increasing function.
c. \( f o g \) is an increasing function.
D. None of these
Subject: Physics
The top of the atmosphere is about 400
kV with respect to the surface of earth,
corresponding to an electric field that
decreases with altitude. Near the
surface of the earth the field is about
\( 100 \mathrm{V} \mathrm{m}^{-1}, \) but still dont get an electric
shock, as we set out of our houses in to
open because : (assume the house is
free from electric field)
A. Our body is a perfect insulator
B. Our body and ground form an equipotential surface
C. The original equipotential surfaces of open air remain same
D. None of the above
Subject: Physics
Two plane mirrors are inclined to each
other at an angle \( \theta . \) A ray of light is reflected first at one mirror and then at
the other. The total deviation of the ray
is
A \( \cdot 360^{\circ}-2 \theta \)
B. \( 240^{\circ}-20 \)
c. 20
D. \( 180^{\circ}-\theta \)
Subject: Physics
If an electric field is given by \( 10 \hat{i}+ \) \( \mathbf{3} \hat{\boldsymbol{j}}+\mathbf{4} \hat{\boldsymbol{k}}, \) calculate the electric flux
through a surface of area 10 units lying in \( \boldsymbol{y} \boldsymbol{z} \) plane
Subject: Maths
In a survey it was found that \( 55 \% \) go for jogging \( , 50 \% \) do yoga \( , 42 \% \) do aerobics, \( 28 \% \) do jogging and yoga, \( 20 \% \) do yoga and aerobics, \( 12 \% \) g for jogging and aerobics and \( 10 \% \) do all three. If each
one of them go for at least one of these, then what percentage do exactly one exercise?
A . 40
B . 45
c. 57
D. 50
Subject: Chemistry
The common name of
\( \boldsymbol{K}\left[\boldsymbol{P t C l}_{3}\left(\boldsymbol{\eta}^{2} \cdot \boldsymbol{C}_{2} \boldsymbol{H}_{4}\right)\right] \) is
A. Potassium salt
B. Zeise's salt
c. complex salt
D. None of these
Subject: Maths
Which of the following functions (is) are injective map(s)?
A \( \cdot f(x)=x^{2}+2, x \in(-\infty, \infty) \)
B. \( f(x)=|x+2|, x \in[-2, \infty) \)
C. \( f(x)=(x-4)(x-5), x \in(-\infty, \infty) \)
D. \( f(x)=\frac{4 x^{2}+3 x-5}{4+3 x-5 x^{2}}, x \in(-\infty, \infty) \)
Subject: Maths
Represent set \( A, B, C \) such that \( A \subset \) \( \boldsymbol{B}, \boldsymbol{A} \cap \boldsymbol{C}=\boldsymbol{\phi} \) and \( \boldsymbol{B} \cap \boldsymbol{C} \neq \boldsymbol{\phi} \) by Venn
diagram. The number of separate
regions representing \( \boldsymbol{A} \cup(\boldsymbol{B} \cap \boldsymbol{C}) \)
is/are:
\( A \cdot 2 \)
B. 3
\( c \cdot 4 \)
D. None of these
Subject: Maths
Sn denotes the sum of first \( n \) terms of
the A.P.1 \( , 2,3,4, \dots . ., \) then \( S_{2 n}=3 S n \)
\( \frac{\boldsymbol{S}_{\boldsymbol{3 n}}}{\boldsymbol{S} \boldsymbol{n}}=? \)
Subject: Physics
A liquid flow through a horizontal tube.
The velocities of the liquid in the two sections, which have areas of cross
section \( \boldsymbol{A}_{\mathbf{1}} \) and \( \boldsymbol{A}_{\mathbf{2}} \) are \( \boldsymbol{v}_{\mathbf{1}} \) and \( \boldsymbol{v}_{\mathbf{2}} \)
respectively. The difference in the levels
of the liquid in the two vertical tubes is
\( h . \) Then
This question has multiple correct options
A. The volume of the liquid flowing through the tube in unit time is \( A_{1} v_{1} \)
\( \mathbf{B} \cdot v_{2}-v_{1}=\sqrt{2 g h} \)
\( \mathbf{c} \cdot v_{2}^{2}-v_{1}^{2}=2 g h \)
D. The energy per unit mass of the liquid is the same in both section of the tube
Subject: Physics
How much work is required to slowly
move a \( 1 \mu C \) charge from \( E \) to D?
A \( \cdot 2 \times 10^{-5} J \)
B . \( -2 \times 10^{-5} J \)
C \( \cdot 4 \times 10^{-5} J \)
D. \( -4 \times 10^{-5} J \)
Subject: Maths
Each of these questions is followed by three statements. You have to study the question and all the three statements
given to decide whether any information provided in the statement(s) is redundant and can be dispensed with while answering the given question.
What is the cost painting the two
adjacent walls of a hall at Rs. 5 per m2 which has no windows or doors?
I. The area of the hall is 24 sq. \( m \)
Il. The breadth, length and height of the hall are in the ratio of 4: 6: 5
respectively.
III. Area of one wall is 30 sq. \( \mathrm{m} \).
A. I only
B. II only
c. III only
D. Either lor III
E. All I, II and III are required.
Subject: Physics
\( Q \) туре уочт question
rod. The rod can revolve in a vertical
plane around the point A. What horizontal velocity must be imparted to the end of the rod \( C \) to deflect it to the
horizontal position? (Given acceleration
due to gravity \( =g \)
4. \( \sqrt{2 g} \)
\( 3 \cdot \sqrt{2 \cdot 4 g} \)
\( c \cdot \sqrt{3 g} \)
\( -\sqrt{3.60} \)
0
Subject: Physics
Two planets \( A \) and \( B \) have the same
average density. Their radii \( \boldsymbol{R}_{A} \) and \( \boldsymbol{R}_{B} \)
are such that \( \boldsymbol{R}_{\boldsymbol{A}}: \boldsymbol{R}_{\boldsymbol{R}}=\boldsymbol{3}: \boldsymbol{1} \) If \( \boldsymbol{g}_{A} \) and
\( g_{B} \) are the acceleration due to gravity at
the surfaces of the planets, the \( g_{A}: g_{B} \)
equals
A . 3: 1
B. 1: 3
c. 9: 1
D. 1: 9
E . \( \sqrt{3}: 1 \)
Subject: Chemistry
The \( I_{1}, I_{2}, I_{3}, I_{4} \) values of an element \( M \)
are \( 120 \mathrm{kJ} / \mathrm{mole}, 600 \mathrm{kJ} / \mathrm{mole}, 1000 \)
kJ/mole and \( 8000 \mathrm{kJ} / \) mole. Then the
formula of its sulphate is:
A. \( M S O_{4} \)
в. \( M_{2}\left(S O_{4}\right)_{3} \)
\( \mathrm{c} \cdot M_{2} \mathrm{SO}_{4} \)
D. \( M_{3}\left(S O_{4}\right)_{2} \)
Subject: Physics
The distance of the closest approach of an alpha particle fired at a nucleus with
kinetic energy \( \boldsymbol{K} \) is \( \boldsymbol{r}_{0} . \) The distance of
the closest approach when the \( \alpha \) particle is fired at the same nucleus
with kinetic energy \( 2 K \) will be
A \( .4 r_{n} \)
B. \( \frac{r_{0}}{2} \)
c. \( \frac{r_{0}}{4} \)
D. \( 2 r_{0} \)
Subject: Physics
A pulley is hinged at the centre and a massless thread is wrapped around it. The thread is pulled with a constant
force \( F \) starting from rest. As the time increases:
A . its angular velocity increases, but force on hinge remains constan
B. its angular velocity remains same, but force on hinge increases
c. its angular velocity increases and force on hinge increases
D. its angular velocity remains same and force on hinge is constant
Subject: Physics
A piece of iron of mass \( 2.0 \mathrm{kg} \) has a
thermal capacity of \( 966 J K^{-1} \). Find its
specific heat capacity in S.I. unit :
A \( \cdot 483 J k g^{-1} K^{-1} \)
B. \( 966 J k g^{-1} K^{-1} \)
C \( .4 .83 \mathrm{Jkg}^{-1} \mathrm{K}^{-1} \)
D. None of the above
Subject: Chemistry
Which of the following mixtures in aqueous solution of equimolar concentration acts as a buffer solution?
A. \( H N O_{3}+N a O H \)
в. \( H_{2} S O_{4}+K O H \)
c. \( N H_{4} O H(\text {excess})+H C l \)
D. \( C H_{3} C O O H+N a O H(e x c e s s) \)
Subject: Biology
There are three sets of animals \( C, D \) and
E. What type of symmetry is shown by
each?
A. C- - Bilateral symmetry, D- Radial symmetry, E- No symmetry
B. C- Radial symmetry, D- Bilateral symmetry, E- No symmetry
c. c- Bilateral symmetry, D- No symmetry, E- Radial symmetry
D. C- No symmetry, D- Radial symmetry, E- Bilateral symmetry
Subject: Maths
\( \mathbf{f} \boldsymbol{y}=\log \left(\frac{\sqrt{(\boldsymbol{x}+\mathbf{1})}-\mathbf{1}}{\sqrt{(\boldsymbol{x}+\mathbf{1})}+\mathbf{1}}\right)+ \)
\( \frac{\sqrt{\boldsymbol{x}}}{\sqrt{(\boldsymbol{x}+\mathbf{1})}} \) the by using substitution
\( x=\tan ^{2} \theta, y \) reduces to
Subject: Maths
Write the given trigonometric expression in its simplest form. \( \tan ^{-1}\left(\frac{3 a^{2} x-x^{3}}{a^{3}-3 a x^{2}}\right), a>0 ; \frac{-a}{\sqrt{3}} \leq \)
\( \boldsymbol{x} \leq \frac{\boldsymbol{a}}{\sqrt{\mathbf{3}}} \)
Subject: Physics
Under minimum deviation condition in
a prism, if a ray is incident at an angle
\( 30^{\circ}, \) the angle between the emergent ray and the second refracting surface of the prism is:
\( A \cdot 0^{\circ} \)
B. 30 \( ^{\circ} \)
\( c \cdot 45^{\circ} \)
D. \( 60^{\circ} \)
Subject: Physics
A man cannot see distinctly less than \( 15 c m \) and more than \( 100 c m . \) He uses a
concave lens of focal length \( -100 \mathrm{cm} \) to see the distant objects clearly. What will be his new near point?
\( \mathbf{A} \cdot 25 \mathrm{cm} \)
в. \( 17.64 m \)
c. 21.64
D. \( 25.74 \mathrm{cm} \)
Subject: Chemistry
The order of boiling point of the following substances is :
\[
\begin{array}{c}
\boldsymbol{N H}_{3}>\boldsymbol{P H}_{3}>\boldsymbol{A} \boldsymbol{s} \boldsymbol{H}_{3}>\boldsymbol{S b} \boldsymbol{H}_{3}> \\
\boldsymbol{B i H}_{3}
\end{array}
\]
If the given order is true enter 1 else 0
Subject: Chemistry
item \( \| \) is
A Item I \( \quad \) Item II
\( (A) \)
(B) Allosteric
effect
\( (C) \)
(D)
\( \mathbf{A} \)
\( (A) \rightarrow(P) ;(B) \rightarrow(R) ;(C) \rightarrow(S) ;(D) \rightarrow(Q) \)
B \( .(A) \rightarrow(R) ;(B) \rightarrow(P) ;(C) \rightarrow(S) ;(D) \rightarrow(Q) \)
\( \mathbf{c} \cdot(A) \rightarrow(P) ;(B) \rightarrow(R) ;(C) \rightarrow(Q) ;(D) \rightarrow(S) \)
D. \( (A) \rightarrow(R) ;(B) \rightarrow(P) ;(C) \rightarrow(Q) ;(D) \rightarrow(S) \)
Subject: Physics
Statement 1: An emf \( \in=€_{0} \)
\( \sin \left(\omega t+\frac{\pi}{6}\right) \) is applied in a circuit and a current of \( i=i_{0} \sin \left(\omega t-\frac{\pi}{3}\right) \) flows
Then the average power delivered by the source is zero.

Statement 2: If the average value of \( \in \)
and \( i \) is separately zero, then the power
consumed will be zero.
A. Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement- -
B. Statement-1 is True, Statement-2 is True; Statement-2
is not a correct explanation for Statement-
c. Statement-1 is True, Statement-2 is False
D. Statement-1 is False, Statement-2 is True.
Subject: Physics
A conducting loop of radius \( R \) is has a
\( B \) -field directed through it at a
downward angle as shown. Determine
the amount of flux in the loop.
\( \mathbf{A} \)
\( B \)
\( \mathbf{c} \cdot B \pi R^{2} \sin \theta \)
\( \mathbf{D} \cdot B \pi R^{2} \cos \theta \)
Subject: Physics
A \( 1 \mathrm{kg} \) mass executes SHM with an amplitude \( 10 \mathrm{cm}, \) it takes \( 2 \pi \) seconds to
go from one end to the other end. The
magnitude of the force acting on it at any end is :
A . \( 0.1 \mathrm{N} \)
B. 0.2 N
c. \( 0.5 \mathrm{N} \)
D. 0.05 N
Subject: Maths
\( \mathbf{f} \boldsymbol{z}=\left|\begin{array}{ccc}\mathbf{3}+\mathbf{3} \boldsymbol{i} & \mathbf{5}-\boldsymbol{i} & \mathbf{7}-\mathbf{3} i \\ \boldsymbol{i} & \mathbf{2} \boldsymbol{i} & -\mathbf{3} i \\ \boldsymbol{3}-\mathbf{2} \boldsymbol{i} & \mathbf{5}+\boldsymbol{i} & \mathbf{7}+\mathbf{3} \boldsymbol{i}\end{array}\right| \), then
A. z is purely real
B. z is purely imaginary
\( c \cdot 0 \)
D. none of these
Subject: Maths
If
\( \int \frac{d x}{\sqrt[3]{\cos ^{12} x+3 \cos ^{10} x+3 \cos ^{8} x+\cos ^{6}}} \)
then \( f(x) \) is
A. Bounded \& periodic
B. Bounded \& aperiodic
c. Unbounded \& periodic
D. Unbounded \& aperiodic
Subject: Maths
PQRS is a square E and F are points on the sides \( Q R \) and \( R S \) respectively show
that \( \boldsymbol{a r}(\boldsymbol{\Delta} \boldsymbol{P Q} \boldsymbol{E})=\boldsymbol{a r}(\boldsymbol{\Delta} \boldsymbol{P S F}) \)
Subject: Chemistry
toppr LoGin non
Q Type your question_
bonding.
Sample \( \quad \) Appearance \( \quad \) Melting
\[
\begin{array}{l}\text { Point } \\ \left(^{\circ} C\right)\end{array}
\] and
condu
onduc
aqueo \begin{tabular}{llll}
\( \mathrm{A} \) & Shiny & 962 & \( \mathrm{co} \) \\
\( \mathrm{B} \) & Crystalline & 801 & \( \mathrm{a} \) \\
& & & \( \mathrm{sol} \) \\
\( \mathrm{C} \) & Powdery & 186 & \( \mathrm{not} \) \( \mathrm{co} \) \\
\hline
\end{tabular} onduc
Based on this data, identify the type of bonds present in each sample.
A. Sample A is a metal.
Sample B is a salt.
Sample \( C \) is a molecule
B. Sample A is a molecule
Sample B is a metal.
Sample \( c \) is a salt.
c. Sample A is a salt.
Sample B is a metal.
Sample \( C \) is a molecule.
D. Sample A is a molecule.
\( B \) is a salt
Sample C is a metal.