List of top Physics Questions asked in JKCET

If the force acting on a body is inversely proportional to its speed, then its kinetic energy is
In inelastic collision
The angle of incidence of light is equal to Brewster's angle, then (A) reflected ray is perpendicular to refracted ray (B) refracted ray is parallel to reflected ray (C) reflected light is polarized having its electric vector in plane of incidence (D) refracted light is polarized
In L-C-R series circuit the resonance condition in terms of capacitive reactance ($X_C$) and inductive reactance ($ X_L)$ is
A sphere of radius $R$ is gently dropped into liquid of viscosity $ \eta $ in a vertical uniform tube. It attains a terminal velocity $v$. Another sphere of radius $2\,R$ when dropped into the same liquid, will attain its terminal velocity
For a gas molecule with $6$ degrees of freedom the law of equipartition of energy gives the following relation between the molecular specific heat $(C_{V})$ and gas constant $(R)$
On bombardment of $U^{235}$ by slow neutrons, $200\, MeV$ energy is released. If the power output of atomic reactor is $1.6\, M\, W$, then the rate of fission will be
The area under the displacement-force curve gives
A solid cylinder is rolling down on an inclined plane of angle $ \theta , $ The coefficient of static friction between the plane and cylinder is $ \mu _{s}$ . Then condition for the cylinder not to slip is
To convert a moving coil galvanometer $(MCG)$ into a voltmeter
The magnetic susceptibility of paramagnetic materials is
The average kinetic energy of a gas molecule is
Consider a thin spherical shell of radius $R$ consisting of uniform surface charge density $\sigma$ The electric field at a point of distance $x$ from its centre and outside the shell is
According to Lenz's law of electromagnetic induction
The net magnetic flux through any closed surface, kept in a magnetic field is
The latent heat of fusion of ice at $0^{\circ} C$ is $80\, cal / g$. Entropy change $(\Delta S)$ accompanying the melting of $1\, g$ of ice at $0^{\circ} C$ would be (units: $cal / g / K$ )
The work done in bringing at a unit positive charge from infinity distance to a point at distance $x$ from a positive charge $Q$ is $W$. Then the potential $ \phi $ at that point is
The frequency of the fundamental note in a wire stretched under tension $T$ is $f$. If the tension is increased to $25 \,T$, then the frequency of the fundamental note will be
When a $p-n$ junction diode is connected in forward bias its barrier potential
Wien 's displacement law for emission of radiation can be written as $(\lambda_{max}$ = wavelength whose energy density is greatest)
A body moving along a circular path of radius $R$ with velocity $v$, has centripetal acceleration a. If its velocity is made equal to $2v$, then its centripetal acceleration is
Kirchhoff's second law for the analysis of circuit is based on
The capacitance $C$ of a capacitor is
The dipole moment of a dipole in an uniform external field $ \vec{E} $ is $ \vec{P} $ . Then, the torque $ (\tau ) $ acting on the dipole is
The depletion layer in a silicon diode is $ 1\,\mu m $ wide and its knee potential is $0.6\,V$, then the electric field in the depletion layer will be