List of top Physics Questions asked in JEE Main

The PV curve shown in the diagram consists of two isothermal and two adiabatic curves. Then:
consists of two isothermal and two adiabatic curves
In a series LCR Circuit, the value of resistance as well as (XL - XC) is halved, then the new current amplitude (I2) will satisfy: (I1 is old current amplitude)
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.
If the resultant of the vectors shown in A√x, find x.
the resultant of the vectors
A ball initially at rest, breaks into two masses m1 and m2 that move with speed 11 and v2 respectively as shown. The ratio of the kinetic energy of the right mass to the left mass is:
A ball of mass 150 gm moving with speed 20m/s is catched in 0.1 sec. find the average force exerted by the hands.
In an electron and a proton are having the same kinetic energy, find the ratio of their linear momentum. (mass of electron = 9.1 x 10-31 kg, mass of proton = 1.67 × 10-27 kg)
For the given logic circuit, the correct relation between the input (A, B) and the output (Y) is
given logic circuit, the correct relation
The organ pipe having same length, one is open while the other is closed. Find ratio of 7th overtone of those organ pipes.
Two planets of mass m1 and m2 are revolving around their orbits r and r2 respectively. Angular momentum of planets are in ratio of 3 then T1/T2 is___
(T1 and T2 are periods of revolutions)
From a rectangular sheet, the shaded portion is removed. Find the co- ordinates of the center of mass after the portion has been removed.
a rectangular sheet, the shaded portion is removed
If radius of earth reduced by one fourth of its present value, then duration of days will be
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 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.
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)
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
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?
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
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.)
A block of mass 5 kg is released
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.
ratio of magnetic field at point P to that at point Q
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
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:
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.)
Assertion (A): Object at radius of curvature of biconvex lens made by glass (u = 1.5) form image at same distance an other side of the lens.
Reason (R): Image of a real object formed by concave lens is always virtual and erect.
Find the equivalent resistance between terminal A and B for the given network.
the equivalent resistance between terminal A and B