List of top Physics Questions asked in KEAM

As temperature increases, at Curie temperature
In a transformer circuit it is possible to
If three tube lights with power 10 W, 25 W and 50 W are connected in parallel to a source voltage V, then the effective power of the combination is
If \(C_v\) is the specific heat capacity at constant volume of a gas, then the amount of heat required to increase the temperature of 2 moles of the gas from \(27^\circ\text{C}\) to \(127^\circ\text{C}\) at constant volume is
The INCORRECT assumption in the kinetic theory of gases is
If n electrons from a neutral solid sphere are transferred to another solid sphere having m electrons (m $>$ n), then the charges on the respective spheres are (e = charge of an electron)
The magnitude and direction of acceleration change in the case of an object
An isolated capacitor of capacitance 100 \(\mu\)F is charged to 32 C. If 16 C of charge is discharged from it, then its capacitance value is
When a tuning fork of frequency 256 Hz is sounded together with unknown tuning fork, 4 beats are heard in one second. The frequency of the unknown tuning fork can be
If a ring of mass 50 g and radius 2cm is rolling on a smooth horizontal platform with its centre of mass moving with a speed of 50 cms\(^{-1}\), then its total energy is
If the gauge pressure at a point well inside a liquid of density \(\rho\) in a tank is \(p\), then the depth of the point from the surface of the liquid is (atmospheric pressure is P)
A couple produces a
If a cylinder is stretched by two equal forces applied normal to its cross-section, then the restoring force per unit area is called
If a body at rest undergoes displacement under the action of force with constant acceleration, then the power delivered by the force at any time t is proportional to
The ratio of the escape velocities from the surface of two planets having densities and radii in the ratio 2 : 1 and 1 : 2 respectively is
A bus covers half of the total distance with a speed of 30 kmh\(^{-1}\) and other half with a speed of 60 kmh\(^{-1}\). The average speed during the total journey is
If \(\vec{F}\) and \(\vec{S}\) represent the applied force and displacement of an object, then the work done is
A cyclist speeding at a velocity \(v\) on a level road takes a sharp circular turn of radius R. If \(\mu\) is the static friction between the tyres and road, then the condition for the cyclist not to slip is
Which one of the following physical quantities has dimensions?
FALSE statement about third law of motion is
If a body starts from rest and moves with constant acceleration of 2 ms\(^{-2}\), then the distance covered between the time intervals 5 s and 6 s is
If $5,mA$ current is drawn from the voltage source in the circuit connected with two resistors each of $2.4,k\Omega$ and four ideal diodes, then the source voltage is
In a diode rectifier, the capacitors with large values of $C$ are used in filter circuits in order to
If a radioactive substance is reduced to $6.25%$ of its initial amount in $256$ days then its half-life period is
If two waves of same wavelength with their intensities in the ratio $25:9$ produce interference, then the ratio of the maximum to minimum intensity is