List of top Physics Questions asked in JEE Main

Given below are two statements:  
Statement I : The diamagnetic property depends on temperature.  
Statement II : The included magnetic dipole moment in a diamagnetic sample is always opposite to the magnetizing field.  
In the light of given statement, choose the correct answer from the options given below:  
The magnetic intensity at the centre of a long current carrying solenoid is found to be 1.6 x 103 Am-1. If the number of turns is 8 per cm, then the current flowing through the solenoid is_____A.

The moment of inertia of a semicircular ring about an axis, passing through the center and perpendicular to the plane of the ring, is \((\frac{1}{x})MR^2\), where R is the radius and M is the mass of the semicircular ring. The value of x will be:

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 _____\(Nm ^{-1}\).
A block of a mass 2 kg is attached with two identical springs of spring constant 20 N/m each.
A block of a mass $2\, kg$ is attached with two identical springs of spring constant $20\, N / m$ each The block is placed on a frictionless surface and the ends of the springs are attached to rigid supports (see figure) When the mass is displaced from its equilibrium position, it executes a simple harmonic motion The time period of oscillation is $\frac{\pi}{\sqrt{x}}$ in SI unit The value of $x$ is
A 1 m long metal rod XY completes the circuit as shown in f igure. The plane of the circuit is perpendicular to the magnetic field of flux density 0.15 T. If the resistance of the circuit is 5ω, the force needed to move the rod in direction, as indicated, with a constant speed of 4 m/s will be ____10−3 N
1 m long metal rod XY completes the circuit

The current required to be passed through a solenoid of 15 cm length and 60 turns in order to demagnetize a bar magnet of magnetic intensity \(2.4 × 10^3Am^{−1}\) is A.

Find moment of inertia about axis shown which is equidistant from both spheres
Find moment of inertia about axis shown which is equidistant from both spheres
An object is placed Infront of a plane mirror 12 cm away from it. The object is kept fixed while the plane mirror is shifted towards the object by a distance of 4 cm. The length of shift in the position of image is equal to ___________ cm.
In two circuit shown above the value of current I1 (in amperes) is equal to \(-\frac{y}{5}A\) . Value of y is equal to
An object is placed at a distance of 40 cm from the pole of a converging mirror. The image is formed at a distance of 120 cm from the mirror on the same side. If the focal length is measured with a scale where each 1 cm has 20 equal divisions. If the fractional error in the measurement of focal length is \(\frac{1}{10\ k}\).Find k.
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 block of mass 1 g is equilibrium with the help of a current carrying square loop which is partially lying in constant magnetic field (B) as shown. Resistance of the loop is 10 Ω. Find the voltage (V) (in volts) of the battery in the loop.
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
In a part of a circuit shown: Find VA – VB in volts. It is given that current is decreasing at a rate of 1 ampere/s.
A massless square loop, of wire of resistance $10\, \Omega$, supporting a mass of $1 \, g$, hangs vertically with one of its sides in a uniform magnetic field of $10^3 G$, directed outwards in the shaded region A de voltage $V$ is applied to the loop For what value of $V$, the magnetic force will exactly balance the weight of the supporting mass of $1 g$ ?(If sides of the loop $=10 \, cm , g =10\, ms ^{-2}$ )
A massless square loop, of wire of resistance 10 Ω, supporting a mass of 1 g, hangs vertically with one of its sides in a uniform magnetic field
A person has been using spectacles of power $-1.0$ dioptre for distant vision and a separate reading glass of power $2.0$ dioptres What is the least distance of distinct vision for this person :
For the given YDSE setup. Find the number of fringes by which the central maxima gets shifted from point O.
(Given d = 1 mm D = 1 m λ = 5000 Å)
Consider a combination of gates as shown:
Consider a combination of gates
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
The magnetic moments associated with two closely wound circular coils $A$ and $B$ of radius $r _{ A }=10$ $cm$ and $r _B=20 cm$ respectively are equal if : (Where $N _A, I _A$ and $N _B, I _{ B }$ are number of turn and current of $A$ and $B$ respectively)
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 3rd orbit.
Electromagnetic wave beam of power 20 mW is incident on a perfectly absorbing body for 300 ns. The total momentum transferred by the beam to the body is equal to
If an inductor with inductive reactance, XL=R is connected in series with resistor R across an A.C voltage, power factor comes out to be P1. Now, if a capacitor with capacitive reactance, XC=R is also connected in series with inductor and resistor in the same circuit, power factor becomes P2. Find \(\frac{P_1}{P_2}\)