List of top Physics Questions asked in JKCET

Nuclear fission can be explained based on
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
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?
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
When a metal conductor connected to the left gap of a meter bridge is heated, the balancing point
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
Dimensional formula for force is
Which factor is immaterial for the wire used in electric fuse?
Maximum lateral displacement of a ray of light incident on a slab of thickness $t$ is
Electrons in the atom are held to the nucleus by
When the temperature increases, the viscosity of
The shortest wavelength in Lyman series is $ 91.2\,nm $. The longest wavelength of the series is
Which of the following graphs shows variation of potential energy ($U$) with position x?
Two particles of equal mass are connected to a rope $AB$ of negligible mass, such that one is at end $A$ and the other dividing the length of the rope in the ratio $ 1:2 $ from $A$. The rope is rotated about end $B$ in a horizontal plane. Ratio of the tensions in the smaller part to the other is (ignore effect of gravity)
A block of mass $ 2\,kg $ rests on a horizontal surface. If a horizontal force of $ 5\,N $ is applied on the block the frictional force on, it is $ (\mu _{k}=0.4,\,\mu _{s}=0.5) $
A bar magnet is held at right angles to a uniform magnetic field. The couple acting on the magnet is to be halved by rotating it from this position. The angle of rotation is