Chemistry
1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Cis form of alkene is found to be more polar than the trans form.

Reason (R) : Dipole moment of trans isomer of 2-butene is zero.

In the light of the above statements, choose the correct answer from the options given below :

2

Given below are two statement :

Statements I : Bromination of phenol in solvent with low polarity such as $$\mathrm{CHCl}_3$$ or $$\mathrm{CS}_2$$ requires Lewis acid catalyst.

Statements II : The Lewis acid catalyst polarises the bromine to generate $$\mathrm{Br}^{+}$$.

In the light of the above statements, choose the correct answer from the options given below :

3

The incorrect postulates of the Dalton's atomic theory are :

(A) Atoms of different elements differ in mass.

(B) Matter consists of divisible atoms.

(C) Compounds are formed when atoms of different element combine in a fixed ratio.

(D) All the atoms of given element have different properties including mass.

(E) Chemical reactions involve reorganisation of atoms.

Choose the correct answer from the options given below :

4

Given below are two statements :

Statement I : Nitration of benzene involves the following step -

JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Hydrocarbons Question 22 English

Statement II : Use of Lewis base promotes the electrophilic substitution of benzene.

In the light of the above statements, choose the most appropriate answer from the options given below :

5

Which of the following gives a positive test with ninhydrin ?

6

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A) : Enthalpy of neutralisation of strong monobasic acid with strong monoacidic base is always $$-57 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

Reason (R) : Enthalpy of neutralisation is the amount of heat liberated when one mole of $$\mathrm{H}^{+}$$ ions furnished by acid combine with one mole of $${ }^{-} \mathrm{OH}$$ ions furnished by base to form one mole of water.

In the light of the above statements, choose the correct answer from the options given below.

7

Given below are two statements:

Statement I: In group 13, the stability of +1 oxidation state increases down the group.

Statement II : The atomic size of gallium is greater than that of aluminium.

In the light of the above statements, choose the most appropriate answer from the options given below :

8

The metal that shows highest and maximum number of oxidation state is :

9

Number of $$\sigma$$ and $$\pi$$ bonds present in ethylene molecule is respectively :

10

An organic compound has $$42.1 \%$$ carbon, $$6.4 \%$$ hydrogen and remainder is oxygen. If its molecular weight is 342 , then its molecular formula is :

11

For the Compounds :

(A) $$\mathrm{H}_3 \mathrm{C}-\mathrm{CH}_2-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3$$

(B) $$\mathrm{H}_3 \mathrm{C}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3$$

(C) JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 13 English 1

(D) JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 13 English 2

The increasing order of boiling point is :

Choose the correct answer from the options given below :

12

The correct order of ligands arranged in increasing field strength.

13

The number of neutrons present in the more abundant isotope of boron is '$$x$$'. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is '$$y$$'. The value of $$x+y$$ is _________ .

14

Which one of the following complexes will exhibit the least paramagnetic behaviour ? [Atomic number, $$\mathrm{Cr}=24, \mathrm{Mn}=25, \mathrm{Fe}=26, \mathrm{Co}=27$$]

15

Molar ionic conductivities of divalent cation and anion are $$57 \mathrm{~S~cm}^2 \mathrm{~mol}^{-1}$$ and $$73 \mathrm{~S~cm}^2 \mathrm{~mol}^{-1}$$ respectively. The molar conductivity of solution of an electrolyte with the above cation and anion will be:

16

Identify 'A' in the following reaction :

JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 33 English

17

The statement(s) that are correct about the species $$\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+}$$ and $$\mathrm{Mg}^{2+}$$.

(A) All are isoelectronic

(B) All have the same nuclear charge

(C) $$\mathrm{O}^{2-}$$ has the largest ionic radii

(D) $$\mathrm{Mg}^{2+}$$ has the smallest ionic radii

Choose the most appropriate answer from the options given below :

18

The reaction at cathode in the cells commonly used in clocks involves.

19

The following reaction occurs in the Blast furnance where iron ore is reduced to iron metal

$$\mathrm{Fe}_2 \mathrm{O}_{3(s)}+3 \mathrm{CO}_{(g)} \rightleftharpoons \mathrm{Fe}_{(\mathrm{l})}+3 \mathrm{CO}_{2(g)}$$

Using the Le-chatelier's principle, predict which one of the following will not disturb the equilibrium.

20

Identify compound (Z) in the following reaction sequence.

JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 28 English

21

The spin-only magnetic moment value of the ion among $$\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Co}^{3+}$$ and $$\mathrm{Cr}^{2+}$$, that acts as strong oxidising agent in aqueous solution is _________ BM (Near integer).

(Given atomic numbers : $$\mathrm{Ti}: 22, \mathrm{~V}: 23, \mathrm{Cr}: 24, \mathrm{Co}: 27$$)

22

The heat of combustion of solid benzoic acid at constant volume is $$-321.30 \mathrm{~kJ}$$ at $$27^{\circ} \mathrm{C}$$. The heat of combustion at constant pressure is $$(-321.30-x \mathrm{R}) \mathrm{~kJ}$$, the value of $$x$$ is __________.

23

JEE Main 2024 (Online) 5th April Morning Shift Chemistry - d and f Block Elements Question 27 English

In a borax bead test under hot condition, a metal salt (one from the given) is heated at point B of the flame, resulted in green colour salt bead. The spin-only magnetic moment value of the salt is _______ BM (Nearest integer) [Given atomic number of $$\mathrm{Cu}=29, \mathrm{Ni}=28, \mathrm{Mn}=25, \mathrm{Fe}=26$$]

24

The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is _________

JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 22 English

25

An artificial cell is made by encapsulating $$0.2 \mathrm{~M}$$ glucose solution within a semipermeable membrane. The osmotic pressure developed when the artificial cell is placed within a $$0.05 \mathrm{~M}$$ solution of $$\mathrm{NaCl}$$ at $$300 \mathrm{~K}$$ is ________ $$\times 10^{-1}$$ bar. (nearest integer).

[Given : $$\mathrm{R}=0.083 \mathrm{~L} \mathrm{~bar} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$$ ]

Assume complete dissociation of $$\mathrm{NaCl}$$

26

In the lewis dot structure for $$\mathrm{NO}_2^{-}$$, total number of valence electrons around nitrogen is _________.

27

The value of Rydberg constant $$(R_H)$$ is $$2.18 \times 10^{-18} \mathrm{~J}$$. The velocity of electron having mass $$9.1 \times 10^{-31} \mathrm{~kg}$$ in Bohr's first orbit of hydrogen atom = ________ $$\times 10^5 \mathrm{~ms}^{-1}$$ (nearest integer).

28

$$9.3 \mathrm{~g}$$ of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product '$$\mathrm{P}$$'. The mass of product '$$\mathrm{P}$$' obtained is $$26.4 \mathrm{~g}$$. The percentage yield is ________ %.

29

Consider the given chemical reaction sequence :

JEE Main 2024 (Online) 5th April Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 12 English

Total sum of oxygen atoms in Product A and Product B are ________.

30

During Kinetic study of reaction $$\mathrm{2 A+B \rightarrow C+D}$$, the following results were obtained :

$$\mathrm{A [M]}$$ $$\mathrm{B [M]}$$ initial rate of formation of $$\mathrm{D}$$
I 0.1 0.1 $$6.0\times10^{-3}$$
II 0.3 0.2 $$7.2\times10^{-2}$$
III 0.3 0.4 $$2.88\times10^{-1}$$
IV 0.4 0.1 $$2.40\times10^{-2}$$

Based on above data, overall order of the reaction is _________.

Mathematics
1

Let a rectangle ABCD of sides 2 and 4 be inscribed in another rectangle PQRS such that the vertices of the rectangle ABCD lie on the sides of the rectangle PQRS. Let a and b be the sides of the rectangle PQRS when its area is maximum. Then (a+b)$$^2$$ is equal to :

2

Let $$A=\{1,3,7,9,11\}$$ and $$B=\{2,4,5,7,8,10,12\}$$. Then the total number of one-one maps $$f: A \rightarrow B$$, such that $$f(1)+f(3)=14$$, is :

3

Let two straight lines drawn from the origin $$\mathrm{O}$$ intersect the line $$3 x+4 y=12$$ at the points $$\mathrm{P}$$ and $$\mathrm{Q}$$ such that $$\triangle \mathrm{OPQ}$$ is an isosceles triangle and $$\angle \mathrm{POQ}=90^{\circ}$$. If $$l=\mathrm{OP}^2+\mathrm{PQ}^2+\mathrm{QO}^2$$, then the greatest integer less than or equal to $$l$$ is :

4

If the line $$\frac{2-x}{3}=\frac{3 y-2}{4 \lambda+1}=4-z$$ makes a right angle with the line $$\frac{x+3}{3 \mu}=\frac{1-2 y}{6}=\frac{5-z}{7}$$, then $$4 \lambda+9 \mu$$ is equal to :

5

Consider the following two statements :

Statement I: For any two non-zero complex numbers $$z_1, z_2,(|z_1|+|z_2|)\left|\frac{z_1}{\left|z_1\right|}+\frac{z_2}{\left|z_2\right|}\right| \leq 2\left(\left|z_1\right|+\left|z_2\right|\right) \text {, and }$$

Statement II : If $$x, y, z$$ are three distinct complex numbers and $$\mathrm{a}, \mathrm{b}, \mathrm{c}$$ are three positive real numbers such that $$\frac{\mathrm{a}}{|y-z|}=\frac{\mathrm{b}}{|z-x|}=\frac{\mathrm{c}}{|x-y|}$$, then $$\frac{\mathrm{a}^2}{y-z}+\frac{\mathrm{b}^2}{z-x}+\frac{\mathrm{c}^2}{x-y}=1$$.

Between the above two statements,

6

Let A and B be two square matrices of order 3 such that $$\mathrm{|A|=3}$$ and $$\mathrm{|B|=2}$$. Then $$|\mathrm{A}^{\mathrm{T}} \mathrm{A}(\operatorname{adj}(2 \mathrm{~A}))^{-1}(\operatorname{adj}(4 \mathrm{~B}))(\operatorname{adj}(\mathrm{AB}))^{-1} \mathrm{AA}^{\mathrm{T}}|$$ is equal to :

7

Let a circle C of radius 1 and closer to the origin be such that the lines passing through the point $$(3,2)$$ and parallel to the coordinate axes touch it. Then the shortest distance of the circle C from the point $$(5,5)$$ is :

8

Let $$f(x)=x^5+2 x^3+3 x+1, x \in \mathbf{R}$$, and $$g(x)$$ be a function such that $$g(f(x))=x$$ for all $$x \in \mathbf{R}$$. Then $$\frac{g(7)}{g^{\prime}(7)}$$ is equal to :

9

The coefficients $$a, b, c$$ in the quadratic equation $$a x^2+b x+c=0$$ are chosen from the set $$\{1,2,3,4,5,6,7,8\}$$. The probability of this equation having repeated roots is :

10

If the system of equations

$$\begin{array}{r} 11 x+y+\lambda z=-5 \\ 2 x+3 y+5 z=3 \\ 8 x-19 y-39 z=\mu \end{array}$$

has infinitely many solutions, then $$\lambda^4-\mu$$ is equal to :

11

The integral $$\int_\limits0^{\pi / 4} \frac{136 \sin x}{3 \sin x+5 \cos x} \mathrm{~d} x$$ is equal to :

12

If $$\frac{1}{\sqrt{1}+\sqrt{2}}+\frac{1}{\sqrt{2}+\sqrt{3}}+\ldots+\frac{1}{\sqrt{99}+\sqrt{100}}=m$$ and $$\frac{1}{1 \cdot 2}+\frac{1}{2 \cdot 3}+\ldots+\frac{1}{99 \cdot 100}=\mathrm{n}$$, then the point $$(\mathrm{m}, \mathrm{n})$$ lies on the line

13

Let $$\mathrm{d}$$ be the distance of the point of intersection of the lines $$\frac{x+6}{3}=\frac{y}{2}=\frac{z+1}{1}$$ and $$\frac{x-7}{4}=\frac{y-9}{3}=\frac{z-4}{2}$$ from the point $$(7,8,9)$$. Then $$\mathrm{d}^2+6$$ is equal to :

14

If the function $$f(x)=\frac{\sin 3 x+\alpha \sin x-\beta \cos 3 x}{x^3}, x \in \mathbf{R}$$, is continuous at $$x=0$$, then $$f(0)$$ is equal to :

15

Let the line $$2 x+3 y-\mathrm{k}=0, \mathrm{k}>0$$, intersect the $$x$$-axis and $$y$$-axis at the points $$\mathrm{A}$$ and $$\mathrm{B}$$, respectively. If the equation of the circle having the line segment $$A B$$ as a diameter is $$x^2+y^2-3 x-2 y=0$$ and the length of the latus rectum of the ellipse $$x^2+9 y^2=k^2$$ is $$\frac{m}{n}$$, where $$m$$ and $$n$$ are coprime, then $$2 \mathrm{~m}+\mathrm{n}$$ is equal to

16

The value of $$\int_\limits{-\pi}^\pi \frac{2 y(1+\sin y)}{1+\cos ^2 y} d y$$ is :

17

Suppose $$\theta \in\left[0, \frac{\pi}{4}\right]$$ is a solution of $$4 \cos \theta-3 \sin \theta=1$$. Then $$\cos \theta$$ is equal to :

18

For the function

$$f(x)=\sin x+3 x-\frac{2}{\pi}\left(x^2+x\right), \text { where } x \in\left[0, \frac{\pi}{2}\right],$$

consider the following two statements :

(I) $$f$$ is increasing in $$\left(0, \frac{\pi}{2}\right)$$.

(II) $$f^{\prime}$$ is decreasing in $$\left(0, \frac{\pi}{2}\right)$$.

Between the above two statements,

19

If $$\mathrm{A}(1,-1,2), \mathrm{B}(5,7,-6), \mathrm{C}(3,4,-10)$$ and $$\mathrm{D}(-1,-4,-2)$$ are the vertices of a quadrilateral ABCD, then its area is :

20

If $$y=y(x)$$ is the solution of the differential equation $$\frac{\mathrm{d} y}{\mathrm{~d} x}+2 y=\sin (2 x), y(0)=\frac{3}{4}$$, then $$y\left(\frac{\pi}{8}\right)$$ is equal to :

21

The area of the region enclosed by the parabolas $$y=x^2-5 x$$ and $$y=7 x-x^2$$ is ________.

22

From a lot of 10 items, which include 3 defective items, a sample of 5 items is drawn at random. Let the random variable $$X$$ denote the number of defective items in the sample. If the variance of $$X$$ is $$\sigma^2$$, then $$96 \sigma^2$$ is equal to __________.

23

Suppose $$\mathrm{AB}$$ is a focal chord of the parabola $$y^2=12 x$$ of length $$l$$ and slope $$\mathrm{m}<\sqrt{3}$$. If the distance of the chord $$\mathrm{AB}$$ from the origin is $$\mathrm{d}$$, then $$l \mathrm{~d}^2$$ is equal to _________.

24

The number of ways of getting a sum 16 on throwing a dice four times is ________.

25

Let $$f$$ be a differentiable function in the interval $$(0, \infty)$$ such that $$f(1)=1$$ and $$\lim _\limits{t \rightarrow x} \frac{t^2 f(x)-x^2 f(t)}{t-x}=1$$ for each $$x>0$$. Then $$2 f(2)+3 f(3)$$ is equal to _________.

26

If $$S=\{a \in \mathbf{R}:|2 a-1|=3[a]+2\{a \}\}$$, where $$[t]$$ denotes the greatest integer less than or equal to $$t$$ and $$\{t\}$$ represents the fractional part of $$t$$, then $$72 \sum_\limits{a \in S} a$$ is equal to _________.

27

Let $$a_1, a_2, a_3, \ldots$$ be in an arithmetic progression of positive terms.

Let $$A_k=a_1^2-a_2^2+a_3^2-a_4^2+\ldots+a_{2 k-1}^2-a_{2 k}^2$$.

If $$\mathrm{A}_3=-153, \mathrm{~A}_5=-435$$ and $$\mathrm{a}_1^2+\mathrm{a}_2^2+\mathrm{a}_3^2=66$$, then $$\mathrm{a}_{17}-\mathrm{A}_7$$ is equal to ________.

28

Let $$\overrightarrow{\mathrm{a}}=\hat{i}-3 \hat{j}+7 \hat{k}, \overrightarrow{\mathrm{b}}=2 \hat{i}-\hat{j}+\hat{k}$$ and $$\overrightarrow{\mathrm{c}}$$ be a vector such that $$(\overrightarrow{\mathrm{a}}+2 \overrightarrow{\mathrm{b}}) \times \overrightarrow{\mathrm{c}}=3(\overrightarrow{\mathrm{c}} \times \overrightarrow{\mathrm{a}})$$. If $$\vec{a} \cdot \vec{c}=130$$, then $$\vec{b} \cdot \vec{c}$$ is equal to __________.

29

If the constant term in the expansion of $$\left(1+2 x-3 x^3\right)\left(\frac{3}{2} x^2-\frac{1}{3 x}\right)^9$$ is $$\mathrm{p}$$, then $$108 \mathrm{p}$$ is equal to ________.

30

The number of distinct real roots of the equation $$|x||x+2|-5|x+1|-1=0$$ is __________.

Physics
1

A body of mass $$50 \mathrm{~kg}$$ is lifted to a height of $$20 \mathrm{~m}$$ from the ground in the two different ways as shown in the figures. The ratio of work done against the gravity in both the respective cases, will be :

JEE Main 2024 (Online) 5th April Morning Shift Physics - Work Power & Energy Question 18 English

2

If $$\mathrm{G}$$ be the gravitational constant and $$\mathrm{u}$$ be the energy density then which of the following quantity have the dimensions as that of the $$\sqrt{\mathrm{uG}}$$ :

3

An alternating voltage of amplitude $$40 \mathrm{~V}$$ and frequency $$4 \mathrm{~kHz}$$ is applied directly across the capacitor of $$12 \mu \mathrm{F}$$. The maximum displacement current between the plates of the capacitor is nearly :

4

Ratio of radius of gyration of a hollow sphere to that of a solid cylinder of equal mass, for moment of Inertia about their diameter axis $$A B$$ as shown in figure is $$\sqrt{8 / x}$$. The value of $$x$$ is :

JEE Main 2024 (Online) 5th April Morning Shift Physics - Rotational Motion Question 29 English

5

In hydrogen like system the ratio of coulombian force and gravitational force between an electron and a proton is in the order of :

6

A simple pendulum doing small oscillations at a place $$R$$ height above earth surface has time period of $$T_1=4 \mathrm{~s}$$. $$\mathrm{T}_2$$ would be it's time period if it is brought to a point which is at a height $$2 \mathrm{R}$$ from earth surface. Choose the correct relation [$$\mathrm{R}=$$ radius of earth] :

7

Match List I with List II :

LIST I LIST II
A. Kinetic energy of planet I. $$
-\mathrm{GMm} / \mathrm{a}
$$
B. Gravitation Potential energy of sun-planet system II. $$
\mathrm{GMm} / 2 \mathrm{a}
$$
C. Total mechanical energy of planet III. $$
\frac{\mathrm{Gm}}{\mathrm{r}}
$$
D. Escape energy at the surface of planet for unit mass object IV. $$
-\mathrm{GMm} / 2 \mathrm{a}
$$

(Where $$\mathrm{a}=$$ radius of planet orbit, $$\mathrm{r}=$$ radius of planet, $$\mathrm{M}=$$ mass of Sun, $$\mathrm{m}=$$ mass of planet)

Choose the correct answer from the options given below :

8

The heat absorbed by a system in going through the given cyclic process is :

JEE Main 2024 (Online) 5th April Morning Shift Physics - Heat and Thermodynamics Question 58 English

9

In the given figure $$\mathrm{R}_1=10 \Omega, \mathrm{R}_2=8 \Omega, \mathrm{R}_3=4 \Omega$$ and $$\mathrm{R}_4=8 \Omega$$. Battery is ideal with emf $$12 \mathrm{~V}$$. Equivalent resistant of the circuit and current supplied by battery are respectively :

JEE Main 2024 (Online) 5th April Morning Shift Physics - Current Electricity Question 29 English

10

Two conducting circular loops A and B are placed in the same plane with their centres coinciding as shown in figure. The mutual inductance between them is:

JEE Main 2024 (Online) 5th April Morning Shift Physics - Electromagnetic Induction Question 11 English

11

If the collision frequency of hydrogen molecules in a closed chamber at $$27^{\circ} \mathrm{C}$$ is $$\mathrm{Z}$$, then the collision frequency of the same system at $$127^{\circ} \mathrm{C}$$ is :

12

Given below are two statements :

JEE Main 2024 (Online) 5th April Morning Shift Physics - Dual Nature of Radiation Question 27 English

Statement I : Figure shows the variation of stopping potential with frequency $$(v)$$ for the two photosensitive materials $$M_1$$ and $$M_2$$. The slope gives value of $$\frac{h}{e}$$, where $$h$$ is Planck's constant, e is the charge of electron.

Statement II : $$\mathrm{M}_2$$ will emit photoelectrons of greater kinetic energy for the incident radiation having same frequency.

In the light of the above statements, choose the most appropriate answer from the options given below.

13

Following gates section is connected in a complete suitable circuit.

JEE Main 2024 (Online) 5th April Morning Shift Physics - Semiconductor Question 22 English

For which of the following combination, bulb will glow (ON) :

14

Given below are two statements :

Statement I : When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be $$0^{\circ}$$.

Statement II : The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well.

In the light of the above statement, choose the correct answer from the options given below.

15

Light emerges out of a convex lens when a source of light kept at its focus. The shape of wavefront of the light is :

16

An electron rotates in a circle around a nucleus having positive charge $$\mathrm{Ze}$$. Correct relation between total energy (E) of electron to its potential energy (U) is :

17

Time periods of oscillation of the same simple pendulum measured using four different measuring clocks were recorded as $$4.62 \mathrm{~s}, 4.632 \mathrm{~s}, 4.6 \mathrm{~s}$$ and $$4.64 \mathrm{~s}$$. The arithmetic mean of these readings in correct significant figure is :

18

The angle between vector $$\vec{Q}$$ and the resultant of $$(2 \vec{Q}+2 \vec{P})$$ and $$(2 \vec{Q}-2 \vec{P})$$ is :

19
In a co-axial straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero :
20

A wooden block of mass $$5 \mathrm{~kg}$$ rests on a soft horizontal floor. When an iron cylinder of mass $$25 \mathrm{~kg}$$ is placed on the top of the block, the floor yields and the block and the cylinder together go down with an acceleration of $$0.1 \mathrm{~ms}^{-2}$$. The action force of the system on the floor is equal to :

21

The electric field between the two parallel plates of a capacitor of $$1.5 \mu \mathrm{F}$$ capacitance drops to one third of its initial value in $$6.6 \mu \mathrm{s}$$ when the plates are connected by a thin wire. The resistance of this wire is ________ $$\Omega$$. (Given, $$\log 3=1.1$$)

22

If three helium nuclei combine to form a carbon nucleus then the energy released in this reaction is ________ $$\times 10^{-2} \mathrm{~MeV}$$. (Given $$1 \mathrm{u}=931 \mathrm{~MeV} / \mathrm{c}^2$$, atomic mass of helium $$=4.002603 \mathrm{u}$$)

23

Three blocks $$\mathrm{M_1, M_2, M_3}$$ having masses $$4 \mathrm{~kg}, 6 \mathrm{~kg}$$ and $$10 \mathrm{~kg}$$ respectively are hanging from a smooth pully using rope 1, 2 and 3 as shown in figure. The tension in the rope $$\mathrm{1, T_1}$$ when they are moving upward with acceleration of $$2 \mathrm{~ms}^{-2}$$ is __________ $$\mathrm{N}$$ (if $$\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$$).

JEE Main 2024 (Online) 5th April Morning Shift Physics - Laws of Motion Question 12 English

24

Three capacitors of capacitances $$25 \mu \mathrm{F}, 30 \mu \mathrm{F}$$ and $$45 \mu \mathrm{F}$$ are connected in parallel to a supply of $$100 \mathrm{~V}$$. Energy stored in the above combination is E. When these capacitors are connected in series to the same supply, the stored energy is $$\frac{9}{x} \mathrm{E}$$. The value of $$x$$ is _________.

25

In the experiment to determine the galvanometer resistance by half-deflection method, the plot of $$1 / \theta$$ vs the resistance (R) of the resistance box is shown in the figure. The figure of merit of the galvanometer is _________ $$\times 10^{-1} \mathrm{~A} /$$ division. [The source has emf $$2 \mathrm{~V}$$]

JEE Main 2024 (Online) 5th April Morning Shift Physics - Current Electricity Question 30 English

26

The density and breaking stress of a wire are $$6 \times 10^4 \mathrm{~kg} / \mathrm{m}^3$$ and $$1.2 \times 10^8 \mathrm{~N} / \mathrm{m}^2$$ respectively. The wire is suspended from a rigid support on a planet where acceleration due to gravity is $$\frac{1}{3}^{\text {rd }}$$ of the value on the surface of earth. The maximum length of the wire with breaking is _______ $$\mathrm{m}$$ (take, $$\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$$).

27

An ac source is connected in given series LCR circuit. The rms potential difference across the capacitor of $$20 \mu \mathrm{F}$$ is __________ V.

JEE Main 2024 (Online) 5th April Morning Shift Physics - Alternating Current Question 14 English

28

A body moves on a frictionless plane starting from rest. If $$\mathrm{S_n}$$ is distance moved between $$\mathrm{t=n-1}$$ and $$\mathrm{t}=\mathrm{n}$$ and $$\mathrm{S}_{\mathrm{n}-1}$$ is distance moved between $$\mathrm{t}=\mathrm{n}-2$$ and $$\mathrm{t}=\mathrm{n}-1$$, then the ratio $$\frac{\mathrm{S}_{\mathrm{n}-1}}{\mathrm{~S}_{\mathrm{n}}}$$ is $$\left(1-\frac{2}{x}\right)$$ for $$\mathrm{n}=10$$. The value of $$x$$ is __________.

29

In Young's double slit experiment, carried out with light of wavelength $$5000~\mathop A\limits^o$$, the distance between the slits is $$0.3 \mathrm{~mm}$$ and the screen is at $$200 \mathrm{~cm}$$ from the slits. The central maximum is at $$x=0 \mathrm{~cm}$$. The value of $$x$$ for third maxima is __________ $$\mathrm{mm}$$.

30

A 2A current carrying straight metal wire of resistance $$1 \Omega$$, resistivity $$2 \times 10^{-6} \Omega \mathrm{m}$$, area of cross-section $$10 \mathrm{~mm}^2$$ and mass $$500 \mathrm{~g}$$ is suspended horizontally in mid air by applying a uniform magnetic field $$\vec{B}$$. The magnitude of B is ________ $$\times 10^{-1} \mathrm{~T}$$ (given, $$\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$$).

1
JEE Main 2024 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Let A and B be two square matrices of order 3 such that $$\mathrm{|A|=3}$$ and $$\mathrm{|B|=2}$$. Then $$|\mathrm{A}^{\mathrm{T}} \mathrm{A}(\operatorname{adj}(2 \mathrm{~A}))^{-1}(\operatorname{adj}(4 \mathrm{~B}))(\operatorname{adj}(\mathrm{AB}))^{-1} \mathrm{AA}^{\mathrm{T}}|$$ is equal to :

A
32
B
81
C
64
D
108
2
JEE Main 2024 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Let a circle C of radius 1 and closer to the origin be such that the lines passing through the point $$(3,2)$$ and parallel to the coordinate axes touch it. Then the shortest distance of the circle C from the point $$(5,5)$$ is :

A
4$$\sqrt2$$
B
4
C
5
D
2$$\sqrt2$$
3
JEE Main 2024 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Let $$f(x)=x^5+2 x^3+3 x+1, x \in \mathbf{R}$$, and $$g(x)$$ be a function such that $$g(f(x))=x$$ for all $$x \in \mathbf{R}$$. Then $$\frac{g(7)}{g^{\prime}(7)}$$ is equal to :

A
42
B
7
C
1
D
14
4
JEE Main 2024 (Online) 5th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

The coefficients $$a, b, c$$ in the quadratic equation $$a x^2+b x+c=0$$ are chosen from the set $$\{1,2,3,4,5,6,7,8\}$$. The probability of this equation having repeated roots is :

A
$$\frac{1}{128}$$
B
$$\frac{1}{64}$$
C
$$\frac{3}{256}$$
D
$$\frac{3}{128}$$
Subject
Chemistry
30
Mathematics
30
Physics
30
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2025
JEE Main 2025 (Online) 8th April Evening ShiftJEE Main 2025 (Online) 7th April Evening ShiftJEE Main 2025 (Online) 7th April Morning ShiftJEE Main 2025 (Online) 4th April Evening ShiftJEE Main 2025 (Online) 4th April Morning ShiftJEE Main 2025 (Online) 3rd April Evening ShiftJEE Main 2025 (Online) 3rd April Morning ShiftJEE Main 2025 (Online) 2nd April Evening ShiftJEE Main 2025 (Online) 2nd April Morning ShiftJEE Main 2025 (Online) 29th January Evening ShiftJEE Main 2025 (Online) 29th January Morning ShiftJEE Main 2025 (Online) 28th January Evening ShiftJEE Main 2025 (Online) 28th January Morning ShiftJEE Main 2025 (Online) 24th January Evening ShiftJEE Main 2025 (Online) 24th January Morning ShiftJEE Main 2025 (Online) 23rd January Evening ShiftJEE Main 2025 (Online) 23rd January Morning ShiftJEE Main 2025 (Online) 22nd January Evening ShiftJEE Main 2025 (Online) 22nd January Morning Shift
2024
JEE Main 2024 (Online) 9th April Evening ShiftJEE Main 2024 (Online) 9th April Morning ShiftJEE Main 2024 (Online) 8th April Evening ShiftJEE Main 2024 (Online) 8th April Morning ShiftJEE Main 2024 (Online) 6th April Evening ShiftJEE Main 2024 (Online) 6th April Morning ShiftJEE Main 2024 (Online) 5th April Evening ShiftJEE Main 2024 (Online) 5th April Morning ShiftJEE Main 2024 (Online) 4th April Evening ShiftJEE Main 2024 (Online) 4th April Morning ShiftJEE Main 2024 (Online) 1st February Evening ShiftJEE Main 2024 (Online) 1st February Morning ShiftJEE Main 2024 (Online) 31st January Evening ShiftJEE Main 2024 (Online) 31st January Morning ShiftJEE Main 2024 (Online) 30th January Evening ShiftJEE Main 2024 (Online) 30th January Morning ShiftJEE Main 2024 (Online) 29th January Evening ShiftJEE Main 2024 (Online) 29th January Morning ShiftJEE Main 2024 (Online) 27th January Evening ShiftJEE Main 2024 (Online) 27th January Morning Shift
2023
JEE Main 2023 (Online) 15th April Morning ShiftJEE Main 2023 (Online) 13th April Evening ShiftJEE Main 2023 (Online) 13th April Morning ShiftJEE Main 2023 (Online) 12th April Morning ShiftJEE Main 2023 (Online) 11th April Evening ShiftJEE Main 2023 (Online) 11th April Morning ShiftJEE Main 2023 (Online) 10th April Evening ShiftJEE Main 2023 (Online) 10th April Morning ShiftJEE Main 2023 (Online) 8th April Evening ShiftJEE Main 2023 (Online) 8th April Morning ShiftJEE Main 2023 (Online) 6th April Evening ShiftJEE Main 2023 (Online) 6th April Morning ShiftJEE Main 2023 (Online) 1st February Evening ShiftJEE Main 2023 (Online) 1st February Morning ShiftJEE Main 2023 (Online) 31st January Evening ShiftJEE Main 2023 (Online) 31st January Morning ShiftJEE Main 2023 (Online) 30th January Evening ShiftJEE Main 2023 (Online) 30th January Morning ShiftJEE Main 2023 (Online) 29th January Evening ShiftJEE Main 2023 (Online) 29th January Morning ShiftJEE Main 2023 (Online) 25th January Evening ShiftJEE Main 2023 (Online) 25th January Morning ShiftJEE Main 2023 (Online) 24th January Evening ShiftJEE Main 2023 (Online) 24th January Morning Shift
2022
JEE Main 2022 (Online) 29th July Evening ShiftJEE Main 2022 (Online) 29th July Morning ShiftJEE Main 2022 (Online) 28th July Evening ShiftJEE Main 2022 (Online) 28th July Morning ShiftJEE Main 2022 (Online) 27th July Evening ShiftJEE Main 2022 (Online) 27th July Morning ShiftJEE Main 2022 (Online) 26th July Evening ShiftJEE Main 2022 (Online) 26th July Morning ShiftJEE Main 2022 (Online) 25th July Evening ShiftJEE Main 2022 (Online) 25th July Morning ShiftJEE Main 2022 (Online) 30th June Morning ShiftJEE Main 2022 (Online) 29th June Evening ShiftJEE Main 2022 (Online) 29th June Morning ShiftJEE Main 2022 (Online) 28th June Evening ShiftJEE Main 2022 (Online) 28th June Morning ShiftJEE Main 2022 (Online) 27th June Evening ShiftJEE Main 2022 (Online) 27th June Morning ShiftJEE Main 2022 (Online) 26th June Evening ShiftJEE Main 2022 (Online) 26th June Morning ShiftJEE Main 2022 (Online) 25th June Evening ShiftJEE Main 2022 (Online) 25th June Morning ShiftJEE Main 2022 (Online) 24th June Evening ShiftJEE Main 2022 (Online) 24th June Morning Shift
2021
JEE Main 2021 (Online) 1st September Evening ShiftJEE Main 2021 (Online) 31st August Evening ShiftJEE Main 2021 (Online) 31st August Morning ShiftJEE Main 2021 (Online) 27th August Evening ShiftJEE Main 2021 (Online) 27th August Morning ShiftJEE Main 2021 (Online) 26th August Evening ShiftJEE Main 2021 (Online) 26th August Morning ShiftJEE Main 2021 (Online) 27th July Evening ShiftJEE Main 2021 (Online) 27th July Morning ShiftJEE Main 2021 (Online) 25th July Evening ShiftJEE Main 2021 (Online) 25th July Morning ShiftJEE Main 2021 (Online) 22th July Evening ShiftJEE Main 2021 (Online) 20th July Evening ShiftJEE Main 2021 (Online) 20th July Morning ShiftJEE Main 2021 (Online) 18th March Evening ShiftJEE Main 2021 (Online) 18th March Morning ShiftJEE Main 2021 (Online) 17th March Evening ShiftJEE Main 2021 (Online) 17th March Morning ShiftJEE Main 2021 (Online) 16th March Evening ShiftJEE Main 2021 (Online) 16th March Morning ShiftJEE Main 2021 (Online) 26th February Evening ShiftJEE Main 2021 (Online) 26th February Morning ShiftJEE Main 2021 (Online) 25th February Evening ShiftJEE Main 2021 (Online) 25th February Morning ShiftJEE Main 2021 (Online) 24th February Evening ShiftJEE Main 2021 (Online) 24th February Morning Shift
2020
JEE Main 2020 (Online) 6th September Evening SlotJEE Main 2020 (Online) 6th September Morning SlotJEE Main 2020 (Online) 5th September Evening SlotJEE Main 2020 (Online) 5th September Morning SlotJEE Main 2020 (Online) 4th September Evening SlotJEE Main 2020 (Online) 4th September Morning SlotJEE Main 2020 (Online) 3rd September Evening SlotJEE Main 2020 (Online) 3rd September Morning SlotJEE Main 2020 (Online) 2nd September Evening SlotJEE Main 2020 (Online) 2nd September Morning SlotJEE Main 2020 (Online) 9th January Evening SlotJEE Main 2020 (Online) 9th January Morning SlotJEE Main 2020 (Online) 8th January Evening SlotJEE Main 2020 (Online) 8th January Morning SlotJEE Main 2020 (Online) 7th January Evening SlotJEE Main 2020 (Online) 7th January Morning Slot
2019
JEE Main 2019 (Online) 12th April Evening SlotJEE Main 2019 (Online) 12th April Morning SlotJEE Main 2019 (Online) 10th April Evening SlotJEE Main 2019 (Online) 10th April Morning SlotJEE Main 2019 (Online) 9th April Evening SlotJEE Main 2019 (Online) 9th April Morning SlotJEE Main 2019 (Online) 8th April Evening SlotJEE Main 2019 (Online) 8th April Morning SlotJEE Main 2019 (Online) 12th January Evening SlotJEE Main 2019 (Online) 12th January Morning SlotJEE Main 2019 (Online) 11th January Evening SlotJEE Main 2019 (Online) 11th January Morning SlotJEE Main 2019 (Online) 10th January Evening SlotJEE Main 2019 (Online) 10th January Morning SlotJEE Main 2019 (Online) 9th January Evening SlotJEE Main 2019 (Online) 9th January Morning Slot
2018
JEE Main 2018 (Online) 16th April Morning SlotJEE Main 2018 (Offline)JEE Main 2018 (Online) 15th April Evening SlotJEE Main 2018 (Online) 15th April Morning Slot
2017
JEE Main 2017 (Online) 9th April Morning SlotJEE Main 2017 (Online) 8th April Morning SlotJEE Main 2017 (Offline)
2016
JEE Main 2016 (Online) 10th April Morning SlotJEE Main 2016 (Online) 9th April Morning SlotJEE Main 2016 (Offline)
2015
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2014
JEE Main 2014 (Offline)
2013
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2012
AIEEE 2012
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AIEEE 2011
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2009
AIEEE 2009
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AIEEE 2008
2007
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2006
AIEEE 2006
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2004
AIEEE 2004
2003
AIEEE 2003
2002
AIEEE 2002
JEE Main Papers
2021
JEE Main 2021 (Online) 1st September Evening Shift
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JEE Main 2021 (Online) 31st August Evening Shift
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JEE Main 2021 (Online) 31st August Morning Shift
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JEE Main 2021 (Online) 27th August Evening Shift
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JEE Main 2021 (Online) 27th August Morning Shift
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JEE Main 2021 (Online) 26th August Evening Shift
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JEE Main 2021 (Online) 26th August Morning Shift
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JEE Main 2021 (Online) 27th July Evening Shift
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JEE Main 2021 (Online) 27th July Morning Shift
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JEE Main 2021 (Online) 25th July Evening Shift
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JEE Main 2021 (Online) 25th July Morning Shift
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JEE Main 2021 (Online) 22th July Evening Shift
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JEE Main 2021 (Online) 20th July Evening Shift
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JEE Main 2021 (Online) 20th July Morning Shift
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JEE Main 2021 (Online) 18th March Evening Shift
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JEE Main 2021 (Online) 18th March Morning Shift
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JEE Main 2021 (Online) 17th March Evening Shift
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JEE Main 2021 (Online) 17th March Morning Shift
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JEE Main 2021 (Online) 16th March Evening Shift
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JEE Main 2021 (Online) 16th March Morning Shift
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JEE Main 2021 (Online) 26th February Evening Shift
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JEE Main 2021 (Online) 26th February Morning Shift
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JEE Main 2021 (Online) 25th February Evening Shift
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JEE Main 2021 (Online) 25th February Morning Shift
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JEE Main 2021 (Online) 24th February Evening Shift
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JEE Main 2021 (Online) 24th February Morning Shift
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