List of top Physics Questions asked in JKCET

A heavy uniform rod is hanging vertically from a fixed support. It is stretched by its own weight. The diameter of the rod is
A ball is released from the top of a tower. The ratio of work done by force of gravity in first, second and third second of the motion of the ball is
A particular force $(F)$ applied on a wire increases its length by $2 \times 10^{-3} m$. To increase the wire's length by $4 \times 10^{-3} m$ the applied force will be
Two free parallel wires carrying currents in the opposite directions
The escape velocity of a body from the earth is $v_{e}$ . If the radius of earth contracts to $ \frac{1}{4}th $ of its value, keeping the mass of the earth constant, the escape velocity will be
Work done in converting one gram of ice at $ -10^{\circ}C $ into steam at $100^{\circ}C $ is
A body of mass $10\, kg$ is acted upon by two forces each of magnitude $10\, N$ making an angle of $60^{\circ}$ with each other. Find the net acceleration of the body.
The least angle of deviation for a glass prism is equal to its refracting angle. The refractive index of glass is $ 1.5 $ . Then the angle of prism is
The time period of a freely suspended bar magnet in a field is $2\, \sec$. It is cut into two equal parts along its axis, (hen the time period is
A body is moving with uniform acceleration. covers $200\, m$ in the first $2\, s$ and $220\, m$ in the next $4\, s$. Find the velocity in $m / s$ after $7\, s$.
Two wires $A$ and $B$ are of lengths $ 40\,cm $ and $ 30\,cm $ . $A$ is bent into a circle of radius $r$ and $B$ into an arc of radius $r$. A current $i_{1}$ is passed through $A$ and $I_2$ through $B$. To have the same magnetic inductions at the centre, the ratio of $I_{1}:I_{2}$ is
Nuclear fission can be explained based on
The angle between magnetic meridian and geographical meridian is known as
A body is released from a great height falls freely towards the earth. Another body is released from the same height exactly a second latter. Then the separation between two bodies, $2\,s$ after the release of the second body is, nearly
Sound waves in air cannot be polarized because
A stationary bomb explodes into two parts of masses in the ratio of $ 1:3 $ . If the heavier mass moves with a velocity $ 4\,m/s, $ what is the velocity of lighter part?
When a metal conductor connected to the left gap of a meter bridge is heated, the balancing point
A dielectric of dielectric constant $K$ is introduced such that half of its area of a capacitor of capacity $C$ is occupied by it. The new capacity is
A particle moves from position \(3\hat{i}+2\hat{j}+6\hat{k}\) to \(14\hat{i}+13\hat{j}+9\hat{k}\) due to a uniform force of \(4\hat{i}+\hat{j}+3\hat{k}\,N\) . Find the work done, if the displacement is in metre.
Vector which is perpendicular to $a \, \cos \theta \hat i + b \, \sin \, \theta \hat j$ is
A charged particle enters a uniform magnetic field with a certain speed at right angles to it. In the magnetic field a change could occur in its
Which of the following statements is true?
Which of the following quantities measured from different inertial reference frames are same?
Electric field strength due to a dipole at a point on the axial line of dipole is
An electric bulb is rated at $ 220\,V, $ $ 100\,W; $ Power consumed by it when operated at $ 110\,V $ is