List of top Physics Questions asked in JEE Main

A block is fastened to a horizontal spring. The block is pulled to a distance $x=10\ cm$ from its equilibrium position (at $x=0$ ) on a frictionless surface from rest. The energy of the block at $x=5$ $cm$ is $025 J$. The spring constant of the spring is _____$Nm ^{-1}$.

Find moment of inertia about axis shown which is equidistant from both spheres

Initial volume of 1 mole of a monoatomic gas is 2 litres. It is expanded isothermally to a volume of 6 litres. Change in internal energy is xR. Find x.

A particle undergoing SHM follows the position-time equation given as x = A sin $(\omega t+\frac{\pi}{3})$ . If the SHM motion has a time period of T, then velocity will be maximum at time $t=\frac{T}{β}$ for first time after t = 0. Value of β is equal to

Consider a combination of gates as shown:

An ideal gas undergoes a thermodynamic process following the relation PT² = constant. Assuming symbols have their usual meaning then volume expansion coefficient of the gas is equal to

Electric field in a certain region is given by $\overrightarrow{ E }=\left(\frac{ A }{x^2} \hat{i}+\frac{ B }{y^3} \hat{j}\right)$ The $SI$ unit of $A$ and $B$ are :

The velocity of an electron in the seventh orbit of hydrogen-like atom is 3.6 × 10⁶ m/s. Find the velocity of the electron in the 3^rd orbit.

A particle moving in unidirectional motion travels half of the total distance with a constant speed of 15 m/s. Now first half of the journey time it travels at 10 m/s and second half of the remaining journey time it travels at 5 m/s. Average speed of the particle is

Momentum-time graph of an object moving along a straight line is as shown in figure. If (P₂ – P₁) < P₁ and (t₂ – t₁) = t₁ < (t₃ – t₂) then at which points among A, B and C the magnitude of force experienced by the object is maximum and minimum respectively.

For a system undergoing isothermal process, heat energy is supplied to the system. Choose the option showing correct statements
(a) Internal energy will increase
(b) Internal energy will decrease
(c) Work done by system is positive
(d) Work done by system is negative
(e) Internal energy remains constant

Two conducting solid spheres (A & B) are placed at a very large distance with charge densities and radii as shown:

Choose the option showing the correct relation between Poisson’s ratio (σ), Bulk modulus (B) and modulus of rigidity (G).

If the earth suddenly shrinks to $\frac{1}{ 64}$ th of its original volume with its mass remaining the same, the period of rotation of earth becomes $\frac{24}{ x}$ h. The value of x is .

The de Broglie wavelength of a molecule in a gas at room tem perature (300 K) is λ₁. If the temperature of the gas is increased to 600 K, then the de Broglie wavelength of the same gas molecule becomes

Find the equivalent capacitance across points A and B in the given electric circuit.

A particle of mass m moving with a velocity v collides with a particle of mass 2m at rest and sticks to it. Velocity of the combined mass equal to?

The range of the projectile projected at an angle of 15° with hor izontal is 50 m. If the projectile is projected with same velocity at an angle of 45° with horizontal, then its range will be

Two forces of magnitude A and $\frac{A}{2}$ act perpendicular to each other. The magnitude of the resultant force is equal to:

An air bubble having volume 1 cm³ at depth 40 m inside water comes to the surface. What will be the volume of the bubble at the surface?

A block of mass 5 kg starting from rest pulled up on a smooth incline plane making an angle of 30^◦ with horizontal with an affective acceleration of 1 ms⁻². The power delivered by the pulling force at t = 10 s from the starts is W. [use g=10 ms⁻²] (Calculate the nearest integer value)

Proton and electron have equal kinetic energy, the ratio of de-Broglie wavelength of proton and electron is $\frac{1}{x}$. Find x. (Mass of proton 1849 times mass of electron)

In which of the following process, the internal energy of gas remains constant

Figures (a), (b), (c) and (d) show variation of force with time The impulse is highest in figure

Given below are two statements:
Statement I : Acceleration due to earth's gravity decreases as you go 'up' or 'down' from earth's surface
Statement II : Acceleration due to earth's gravity is same at a height '$h$' and depth ' $d$ ' from earth's surface, if $h = d$.
In the light of above statements, Choose the most appropriate answer form the options given below