List of top Physics Questions asked in JEE Main

The track shown in the figure is frictionless. The block B of mass 4 kg is lying at rest and block A of mass 2 kg is pushed along the track with some speed. The collision between A and B is perfectly elastic.With what velocity should the block A start such that block B just reaches at point P?
A block of mass M slides down on a rough inclined plane with constant velocity. The angle made by the inclined plane with horizontal is θ.The magnitude of the contact force will be
A vessel contains helium, which expands at constant pressure when 15 kJ of heat is supplied to it. The work performed (in kJ) in the expansion will be ______.
In a pond of water, a flame is held 2 m above the surface of water. A fish is at depth of 4 m from water surface. Refractive index of water is 43. The apparent height of the flame from the eyes of fish is:
In the Bohr model of the hydrogen atom, let R, V and E represent the radius of the orbit, speed of the electron and total energy of the electron respectively. Which of the following quantity is proportional to the quantum number n ?
A body of mass 4 kg is at a height of R (radius of earth) from surface of earth. The weight of the body is ______ N.
In a given AC circuit consisting of a resistor R and an inductor L and source emf, two voltmeter V1 & V2 are connected as shown. If V2 = 36 volts then inductance of inductor is (Resistance R is √91Ω.)
AC circuit consisting of a resistor R and an inductor L
Which graph correctly represents the photo current (i) vs stopping potential (Vs) for the same frequency but different intensity? $(here, I_1 › I_2)$
Two persons are pulling a rope towards themselves with a force of 200 N each. If the Young's modulus is 2 x 1011 N/m2 and area of cross-section is 2 cm2 for the rope, the elongation in the rope is ____.
(distance between the persons holding the ropes is 2 m.)
The angle of polarization of glass is 58° and that for water is 53°. The angle of polarization for glass in water is
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.
A cubical arrangement of 12 resistors each having resistance R is shown. Find I.
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:
The dimension of latent heat is:
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
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.
YDSE shown a monochromatic light
An object is projected such that its horizontal range and maximum height are same, then angle of projection is
An electron and a proton has same de Broglie wavelength. If Ke and Kp 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 \(\frac{q_1}{q_2}\)
two charges q1 and –q2 placed on the x-axis
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.