List of top Physics Questions asked in JEE Main

Electric field in space is given by \[ \vec{E} = 2x\hat{i} + 3y^2\hat{j} + 4\hat{k} \] A charge $q = 3\,C$ is taken from $r_1(0,-1,-3)$ to $r_2(5,1,2)$. Find magnitude of $ \Delta U $.

The dimensions of a solid cylinder is measured as given Mass $= 19.42 \pm 0.02 \,kg$ Diameter $= 20.20 \pm 0.02 \,cm$ Length $= 10.10 \pm 0.02 \,cm$ Find out % error in density.

Find minimum $R_s$ so that LED light does not get damaged (power rating of LED is $2\,mW$).

Intensity of two sources is same and path difference at point $A$ and $B$ are $ \frac{\lambda}{6} $ and $ \frac{\lambda}{3} $ respectively. Ratio of intensity at $A$ and $B$ will be.

A sphere of mass $5\,kg$ and radius $4\,cm$ is rotating about a fixed axis along its diameter with $1200\,\text{rpm}$. To stop it in $10\,s$, a torque is applied. Find magnitude of torque required and number of revolutions made before it stops respectively :-

For the given circuit, find the ratio of instantaneous voltage across the inductor when current is $2\,\text{mA}$ and when current is $4\,\text{mA}$.

A particle is performing SHM of amplitude $A$. Find the time required for particle to go from mean position to $ \dfrac{A}{\sqrt{2}} $. Time period of SHM is $5$ sec :-

In YDSE a glass slab of thickness $8\,\mu m$ is introduced in front of a slit. If central maxima shifts to the position of 4th minima, then find refractive index of glass slab $(\lambda = 500\,\text{nm})$:

Find heat dissipated in $6\Omega$ resistance in $100$ seconds in the given circuit.

Find transverse magnification due to curved boundary between two mediums as shown in the figure. Refractive index of second medium $n_2 = 1.4$.

A particle is released from point $A$ of the track as shown in the figure. Find $h$ so that the normal reaction at the highest point is 3 times the weight of the block. The surface is smooth.

Electric field due to a half ring at the center is $100\,\text{N/C}$. Find the charge on the ring. Radius of the ring is $10\,\text{cm}$.

In an AC circuit, supply voltage $ V_{\text{rms}} = 1000\,\text{V} $, $ R = 80\,\Omega $, $ X_L = 80\,\Omega $, and source frequency $ f = 50\,\text{Hz} $. Find the power factor.

Two sphere are connected with a conducting wire. $E_{S_1}$ & $E_{S_2}$ are electric field at surface of sphere at equilibrium, find $\frac{E_{S_1}}{E_{S_2}}$.

As shown in the figure, the ratio of $T_1$ and $T_2$ is

Diagram shows a circuit consisting of some elements. The input and output of the circuit is shown. Choose the correct option that shows the component in box. (Zener diode has a breakdown potential of 5V)

Options are: