List of top Physics Questions asked in JEE Main

In a clock, second hand and minute hand are of 75 cm and 60 cm respectively. After 30 minutes, ratio of distance travelled by the tip of second hand to that of minute hand is x. Find x.

A cubical arrangement of 12 resistors each having resistance R is shown. Find I.

The PV curve shown in the diagram consists of two isothermal and two adiabatic curves. Then:

A galvanometer having resistance of 200 Ω shows full deflection at 20 μA. If the galvanometer has to measure current up to 20 mA, the shunt resistance required is

The equivalent energy of 1 gm mass is equal to:

Velocity of a particle of mass m as a function of displacement x is given by v = ɑ√x. Work done to move it from x = 0 to x = d is:

In the pulley-block system shown, the pulley and the block are ideal. If the acceleration of the block is g/8, find m1:m2 (Given m2 > m1)

The dimension of latent heat is:

A screw gauge with a pitch of 1 mm and a circular scale with 100 divisions is used to measure the thickness of the aluminium sheet. Negative zero error of 0.05 mm is there. What is the thickness of the sheet when main scale reading is 4 mm and 60th division coincides with the main scale line

A vernier caliper having least count \(\frac{1}{20N}\)cm and one main scale division is 1 mm, then value of one vernier scale division is

A wave is given by the equation y= Asin{ π(330t-x) },then frequency of the wave is

In a YDSE shown a monochromatic light of wavelength 500 nm is incident. At point P, 10th maxima is formed. Now the two slits are replaced with a single slit of width w placed at the centre. If first diffraction minima is observed at P, find w.

An object is projected such that its horizontal range and maximum height are same, then angle of projection is

Find ratio of magnetic field at point P to that at point Q. Point P is inside the solid cylinder and Q is outside the cylinder. Current is uniform through the crosssection of cylinder.

An electron and a proton has same de Broglie wavelength. If K_e and K_p are their respective kinetic energies, then

A physical quantity P depends on electric field (E) and permittivity of free space ( ε₀ ) as  P ∝ E ε₀², Find dimension of P

A disk of mass M, radius R is rotating about an axis passing through its centre and perpendicular to its plane with angular speed ω. If another disk of mass \(\frac{M}{2}\) and radius R is gently placed over it what will be their common angular velocity after some time?

Figure shows two charges q₁ and –q₂ placed on the x-axis as shown. If electric field at p is along x-direction, find \(\frac{q_1}{q_2}\)

The ratio of molar heat capacity at constant volume of one mole monoatomic gas to the one mole diatomic gas is given as a/b, where a and b are co-prime number, then find (a + b)

In a diffraction pattern of a monochromatic light of wavelength 6000 pm, the slit width is 3 mm. If the angular position of 2nd minima is N x 10^-6 rad, find N.

Three particles having different masses have the same momentum. Find the ratio of their kinetic energy. (m₁ = 400 gm,m₂ = 1.2 kg,m³ = 1.6 kg)

The diameter of a sphere having mass 8.635 gm is measured by a vernier scale. 10 divisions of vernier scale coincide with 9 divisions of main scale and main scale division is 1 mm. If the reading of the main scale is 2 cm & 2nd division of vernier coincide with a main scale division, the density of the sphere is

A solenoid of 10 turns cross section area 36 cm² and of resistance 10 mΩ is placed in a magnetic field which is varying at a constant rate of 0.5 T/sec. Find power of heat dissipation.

An electromagnetic radiation of intensity 360 W /cm² is incident normally on a non-reflecting surface having area A. Average force on the surface is found to be 2.4 x 10^-4 N. Find the value of A.

In a series LCR Circuit, the value of resistance as well as (X_L - X_C) is halved, then the new current amplitude (I₂) will satisfy: (I₁ is old current amplitude)