List of top Physics Questions asked in KCET

A bar magnet is allowed to fall vertically through a copper coil placed in a horizontal plane. The magnet falls with a net acceleration

A basic communication system consists of (i) transmitter (ii) information source (III) user of information (iv) channel (v) receiver

According to Cartesian sign convention, in ray optics

In metre bridge experiment, with a standard resistance in the right gap and a resistance coil dipped in water (in a beaker) in the left gap, the balancing length obtained is $?l?$. If the temperature of water is increased, the new balancing length is

A magnetic dipole of magnetic moment $6 \times 10^{-2} \, {Am^{2}}$ and moment of inertia $12 \times 10^{-6} \, {kg\, m^{2}}$ performs oscillations in a magnetic field of $2 \times 10^{-2} $ T. The time taken by the dipole to complete $20$ oscillations is $( \pi \simeq 3)$

A motor pump lifts $6$ tonnes of water from a well of depth $25\, m$ to the first floor of height $35\, m$ from the ground floor in $20$ minutes. The power of the pump (in kW) is $[g = 10\, ms^{-2}]$

Two simple pendulums $A$ and $B$ are made to oscillate simultaneously and it is found that $A$ completes $10$ oscillations in $20\, sec$ and $B$ completes $8$ oscillations in $10\, sec$. The ratio of the lengths of $A$ and $B$ is

A proton, a deuteron and an $\alpha$ - particle are projected perpendicular to the direction of a uniform magnetic field with same kinetic energy. The ratio of the radii of the circular paths described by them is

The S.I. unit of specific heat capacity is

The output of a step down transformer is measured to be $48\, V$ when connected to a ${12 \, W}$ bulb. The value of peak current is

The mean energy of a molecule of an ideal gas is

A coil of inductive reactance $1/ \sqrt{3}\, O$ and resistance $1 \, \Omega$ is connected to a $200\, V$, $50\,Hz \,A.C.$ supply. The time lag between maximum voltage and current is

Two balls are thrown simultaneously in air. The acceleration of the centre of mass of the two balls when in air,

In a nuclear reactor the function of the Moderator is to decrease

The magnetic field at the center of a current carrying loop of radius $0.1\, m$ is $5 \sqrt{5}$ times that at a point along its axis. The distance of this point from the centre of the loop is

If $A = 2 \hat{i} + 3 \hat{j} + 8 \hat{k}$ is perpendicular to $B= 4 \hat{i} + 4 \hat{j} + \alpha \hat{k}$, then the value of $\alpha$ is

The value of $I$ in the figure shown below is

A body of mass $50\, kg$. is suspended using a spring balance inside a lift at rest. If the lift starts falling freely, the reading of the spring balance is

Three point charges of $+ 2q, + 2q$ and $- 4q$ are placed at the corners $A, B$ and $C$ of an equilateral triangle $ABC$ of side $'x'$. The magnitude of the electric dipole moment of this system is

The working of magnetic braking of trains is based on

The power dissipated in $3 \Omega$ resistance in the following circuit is

The minimum value of effective capacitance that can be obtained by combining $3$ capacitors of capacitances $1\, pF,\, 2\, pF$ and $4\, pF$ is

A jet plane of wing span $20\, m$ is travelling towards west at a speed of $400 \,{ms^{-1}}$. If the earth?s total magnetic field is $4 \times 10^{-4} T$ and the dip angle is $30^\circ$, at that place, the voltage difference developed across the ends of the wing is