List of top Physics Questions asked in JEE Main

If the resultant of the vectors shown in A√x, find x.

A 5V battery with internal resistance 2Ω and a 2V battery with internal resistance 1Ω are connected to a 10Ω resistor as shown in the figure. The current in the 10Ω resistor is

A block of mass 5 kg is released as shown in the figure. Surface CD is rough with = 0.5, rest of all the surfaces are smooth. Find the maximum compression in the spring (initially spring is in its natural length.)

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 $\frac{4}{3}$. The apparent height of the flame from the eyes of fish is:

Find the equivalent resistance between terminal A and B for the given network.

Which of the following is metal compound semiconductor?

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.

A wave on a string is described by $u(x,t)=0.005 \sin (6.28x-314t)$ in which all quantities are in SI units. It's wavelength is _______.

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.)

A particle oscillates in simple harmonic motion such that its speed and acceleration at distance 2 m from mean position are 4 m/s and 16 m/s² respectively. Find the amplitude of oscillation of the particle.

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.

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: