List of top Questions asked in JEE Main- 2026

A particle moves along the $x$-axis and has its displacement $x$ varying with time $t$ according to the equation \[ x = c_0 (t^2 - 2) + c(t - 2)^2 \] where $c_0$ and $c$ are constants of appropriate dimensions. Which of the following statements is correct?

A cubical block of density $ \rho_b = 600\,\text{kg/m}^3 $ floats in a liquid of density $ \rho_l = 900\,\text{kg/m}^3 $. If the height of block is $H = 8.0\,\text{cm}$, then height of the submerged part is ________ cm.

The equilateral triangular frame has current 2A. The side of frame is $4\sqrt{3}$ cm. Magnetic field at center C is:

There is a galvanometer of resistance $100\Omega$ and full scale current $I_g = 1$ mA. Find shunt resistance required to increase its range to $5$ mA.

A particle is falling under gravity. Air resistance on particle is F = $-$kv. Find correct option :

Find out the correct energy for the ground state or energy transition. (Symbols have usual meaning and $n \to m$ gives the transition)

Three silicon diodes connected parallel to each other as shown. Forward voltage of diode is 0.7 V. Find current through diode A :

A particle of mass 2 kg initially at rest starts moving under the force $\vec{F} = 6t^2\hat{i} - 4at\hat{j}$.
If the speed of the particle at $t = 1$ s is $\sqrt{5}$, then the value of constant a is:

For the given resistive network, the net resistance across $ AB = x $. Then find the value of $ x $.

A sinusoidal electromagnetic wave is given by $ \vec{E} = 20 \sin \left( \frac{2}{300} x - 10^6 t \right) $ propagating in a non-magnetic material. Dielectric constant of the material is.

For the given circuit, find the reading of the ammeter just after the key(s) is closed.

Two identical circular loops $P$ and $Q$ each of radius $r$ are lying in parallel planes such that they have common axis. The current through $P$ and $Q$ are $I$ and $4I$ respectively in clockwise direction as seen from $O$. The net magnetic field at $O$ is:

In the following configuration of charges. Find the net dipole moment of the system :

The minimum deviation produced by a prism is equal to the refracting angle of prism, then choose the range of refractive index ($\mu$) of material of prism:

If the electric potential is $V = 500$ volts at the point $(10,\,20)$ and the electric field is given by \[ \vec{E} = 10x\,\hat{i} + 5y\,\hat{j}\ \text{N/C}, \] find the potential at the origin.

The energy of an electron in an orbit of the Bohr's atom is $-0.04 E_g$ where $E_g$ is the ground state energy. If $L$ is the angular momentum of the electron in this orbit and $h$ is the Planck's constant, then $\frac{2 \pi L{h}$ is _________} :}

Disk $ m_1 = 5 \, \text{kg} $ \& radius $ r_1 = 10 \, \text{cm} $ and disk $ m_2 = 10 \, \text{kg} $ \& radius $ r_2 = 50 \, \text{cm} $ are arranged as shown in the figure. Find the moment of inertia about an axis through the common tangent and parallel to the plane of the disks.

Velocity of particle varies with position as shown in figure. Find the correct variation of acceleration with position.

Find heat given to gas to take it from A to B. (Given: $C_v = 21$ S.I. units, $P_2 = 30$ Pa, $P_1 = 21.7$ Pa, $R = 8.3$ S.I. units, $n = 10$ moles)

Electromagnetic wave with intensity $ I = 4 \times 10^{14} \, \text{watt/m}^2 $ is propagating in free space. Find the amplitude of magnetic field $ B_0 $. Given: $ c = 3 \times 10^8 \, \text{m/s}, \epsilon_0 = 8.85 \times 10^{-12} \, \text{C}^2/\text{N} \cdot \text{m}^2 $.

A ball of mass 100 g is projected with velocity 20 m/s at $60^\circ$ with horizontal. The decrease in kinetic energy of the ball during the motion from point of projection to highest point is:

Paratrooper jumps... opens parachute after 2s... initial height is ___ m.

In a circuit there is a battery with internal resistance $ r $ and Emf $ E $, which is connected to external load resistance $ R $ as shown. Find the value of $ R $ so that maximum power dissipates across $ R $.

Energy of first line of Lyman series - A Energy of second line of Balmer series - B Energy of first line of Balmer series - C Energy of second line of Lyman series - D What will be the correct decreasing order of energies of photons?

In period 4 of the periodic table, the elements with highest and lowest atomic radii respectively are: