List of top Physics Questions asked in JKCET

Dimensional formula for force is

Maximum lateral displacement of a ray of light incident on a slab of thickness $t$ is

Which factor is immaterial for the wire used in electric fuse?

Electrons in the atom are held to the nucleus by

The shortest wavelength in Lyman series is $ 91.2\,nm $. The longest wavelength of the series is

When the temperature increases, the viscosity of

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 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

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) $

Electromagnetic waves can be deflected by

A galvanometer has a resistance $ 50\,\Omega $ . A resistance of $ 5\,\Omega $ is connected parallel to it. Fraction of the total current flowing through galvanometer is

From a balloon rising vertically upwards as $ 5\,m/s $ a stone is thrown up at $10 \,m/s$ relative to the balloon. Its velocity with respect to ground after $ 2\,s $ is (assume $ g=10\,m/s^{2} $ )

Angle of banking for a vehicle speed of $ 10\,m/s $ for a radius of curvature $ 10\,m $ is (assume $ g=10\,m/s^{2} $ )

Equation of progressive wave is $\hspace25mm y = A \sin \big(10 \pi x + 11 \pi t + \frac{\pi}{3}$.

Density of liquid in CGS system is $ 0.625\,g/cm^{3} $ What is its magnitude in SI system?

For protecting a sensitive equipment from external magnetic field, it should be

If the length of rod $A$ is $ 3.25\pm 0.01\,cm $ and that of $B$ is $ 4.19\pm 0.01\,cm, $ then the rod $B$ is longer than rod $A$ by

Petrol engine does the work during

A circular coil of $20$ turns and radius $10 \,cm$ is placed in uniform magnetic field of $ 0.10\,T $ normal to the plane of the coil. If the current in coil is $5 \,A$, then the torque acting on the coil will be

A geostationary satellite is revolving around the earth. To make it escape from gravitational field of earth, its velocity must be increased

What is the mass of $ 2\,L $ of nitrogen at $ 22.4\,arm $ pressure and $ 273\,K $ ?

A perfect black body is one whose emissive power is

The electric field due to an electric dipole at a distance $r$ from its centre in axial position is $E$. If the dipole is rotated through an angle of $ 90^{\circ} $ about its perpendicular axis, the electric field at the same point will be

Two simple pendulums of lengths $ 1.44\,m $ and $ 1 m $ start swinging together. After how many vibrations will they again start swinging together?