List of top Physics Questions asked in JEE Main

A body of mass of \(4\;kg\) experiences two forces \(\vec{F_1}=5\hat i+8\hat j+7\hat k \) and \(\vec{F_2}=3\hat i-4\hat j-3\hat k\) then acceleration acting on the body \(R\)

If the percentage error in measuring length and diameter of a wire is \(0.1\%\) each, then the percentage error of the resistance of the wire is :
Two solid spheres each of mass 2 kg and radius 75 cm are arranged as shown. Find MOI of the system about the given axis.
Two solid spheres each of mass 2 kg and radius 75 cm are arranged
If \(E = \frac{(A-x^2)}{Bt}\) where \(E\) is energy, \(x\) is displacement and \(t\) is time. Find dimensions of \(AB\)
Distance between twice-magnified virtual image of an object placed in front of mirror is 15 cm. Find focal length of spherical mirror in cm.
Distance between virtual image, which is twice the size of object placed in front of mirror and object is 45 cm. The magnitude of focal length of the mirror is _____cm.
Two resistances having coefficient of variation of resistivity \(α_1\) and \(α_2\) are having equal resistance. Equivalent temperature coefficient of resistivity in series and parallel combinations are:
An artillery of mass \(M_1\), fires a shell of mass \(M_2\). At the time of firing the ratio of kinetic energy is.
\(T-V\) graph is given for two different pressures \(P_1\) and \(P_2\), Then :
T-V graph is given for two different pressures
A particle is moving in circular path of radius r speed v such that speed is proportional to radius as \(V∝ r^{\frac{3}{2}}\). Then how does time period of revolution depends on r i.e Trn then \(n\) is.
The voltage applied across the resistance R is 200+5 and current in resistance is 20+0.2 then find % error in resistance.
Two rings of equal radius \(R\) arranged perpendicular to each other with common center at \(C\), carrying equal current \(I\). Find magnetic field at \(C\).
Find the potential difference across \(700\) \(Ω\) resistance (i.e. Vo)
potential difference across 700
A long wire carrying current \(\sqrt{(2)}A\) is placed in a uniform magnetic field of \(3 \times 10^{-5}\; T\). If the magnetic field is perpendicular to wire, find magnetic force on the length of wire.
Force F depends on distance \(x\) and time \(t\) as \(F = ax^ 2 + bt\;\frac{1}{2}\) . Final dimension of \(\frac{b^2}{a}\) is
In the given circuit, find electric current drawn from battery :
In the given circuit, find electric current drawn from battery

A bullet of mass \(10^{-2}\) kg and velocity \(200\) m/s gets embedded inside the bob of mass \(1\) kg of a simple pendulum. The maximum height that the system rises by is_____ cm.
Mass

A uniform disc of mass \(5\) \(kg\) and radius \(2\) \(m\) is rotating with \(10\) \(rad/s\). Now another identical disc is gently placed on first disc. Because of friction both disc acquire common angular velocity. Loss of kinetic energy in process is ________J.
A source produced electromagnetic wave of frequency 60MHz. Find the wavelength of this wave in air.
The electric field in an electromagnetic wave is moving in a free space given as vec \(E =E_ 0 \;sin(⍵t - kz)\) \(i\) The corresponding magnetic field will be:
A big drop is formed by coalescing 1000 small droplets of water. What will be the change in surface energy What will be the ratio between the total surface energy of the droplets and the surface energy of the big drop?
A square loop of resistance \(16 \;Ω\) is connected with battery of \(9\) \(V\) and internal resistance of \(1\) \(Ω\). In steady state. Find energy stored in capacitor of capacity \(C = 4 µF\) as shown. (at steady state current divides symmetrically)
If the ratio of centripetal acceleration of two particles moving on the same circular path is \(3: 4\). Find the ratio of their speed.
A gas undergoes a cyclic process ABCA as shown. Find the work done by the gas from A→B→C.
An electron is moving with the speed of \(1\) \(m/s\) at a distance of \(1\) \(m\), from a large sheet of charge with density \(σ\) \(C/m^2\). Find the maximum value of \(σ\) such that electron hits the sheet after \(1\) \(sec\). (mass of electron = \(9 × 10^{-31}\) kg, Permittivity of free space = \(9\times10^{12}\;C^2/Nm^2\)