List of top Physics Questions asked in AP EAPCET

When \(g\) is the acceleration due to gravity on earth, the gain in potential energy of an object of mass \(m\) raised from the surface of earth to a height equal to the radius of earth \(R\) is
A particle is executing simple harmonic motion with amplitude \(A\). The position at which kinetic energy and potential energy are equal is given by
Two particles of masses \(4\,\text{g}\) and \(2\,\text{g}\) are separated by a distance of \(60\,\text{cm}\). The centre of mass of the system of these two particles is
A \(1000\,\text{kg}\) car moves at \(20\,\text{m s}^{-1}\). The power required to maintain this speed against a resistive force of \(500\,\text{N}\) is
A \(3\,\text{kg}\) block on a rough incline of angle \(37^\circ\) is connected to a hanging mass of \(4\,\text{kg}\). If the coefficient of friction between the \(3\,\text{kg}\) block and the rough incline is \(\mu=0.25\), then the acceleration of the system is \[ g=10\,\text{m s}^{-2}, \qquad \sin37^\circ=0.6, \qquad \cos37^\circ=0.8 \]
A stream of water flowing horizontally with a speed of \(15\,\text{m s}^{-1}\) gushes out of a tube of cross-sectional area \(10^{-2}\,\text{m}^2\) and hits a vertical wall nearby. Assuming water does not rebound, the force exerted on the wall by the impact of water is
If \[ a=-kv \] represents the variation of acceleration of a particle with velocity, then the time taken to reduce the velocity from \(v\) to \(\dfrac{v}{2}\) is
The pressure applied on a cube from all sides is \(P\). In order to keep its volume constant, the temperature of the cube is to be raised by (The bulk modulus and the coefficient of volume expansion of the material of the cube are \(\beta\) and \(\alpha\) respectively)
The displacement of a particle executing simple harmonic motion is given by \[ x=6\sin\left(2\pi t+\frac{\pi}{4}\right)\,\text{m}. \] The amplitude and maximum speed are respectively
A massless spring with spring constant \(k\) is fixed at its upper end. A block of mass \(M\) is attached to the lower end of the spring and released from rest in its unstretched position. The maximum elongation of the spring is
A swimmer can swim at \(5\,\text{m s}^{-1}\) in still water. River flows at \(3\,\text{m s}^{-1}\). To cross the river in shortest time, the angle with respect to the perpendicular to the flow is
A balloon is rising vertically upwards with a velocity of \(10\,\text{m s}^{-1}\). When the balloon is at a height of \(40\,\text{m}\) from the ground, a stone is dropped from it. The time taken by the stone to reach the ground is (Take \(g=10\,\text{m s}^{-2}\)).
If \(A\), \(B\) and \(C\) represent work done, distance and electric charge respectively, then the physical quantity having the dimensions of \[ \frac{C^2}{AB} \] is
If the radius of a nucleus having \(13\) protons and \(14\) neutrons is \(3.6\,\text{fm}\), then the ratio of the volume to surface area of a nucleus having \(53\) protons and \(72\) neutrons is
In amplitude modulation, if the modulation index is \(0.8\) and the peak voltage of the message signal is \(10\,\text{V}\), then the amplitudes of the upper and lower side bands of the modulated wave are respectively
The given circuit consists of five logic gates. If the inputs are \(A=0\), \(B=1\), \(C=1\) and \(D=0\), then the outputs \((y_1,y_2)\) are respectively
If the ratio of the time periods of the electrons revolving in the first and \(n^{\text{th}}\) orbits of Hydrogen atom is \(1:64\), then the angular momentum of the electron in the \(n^{\text{th}}\) excited state of Hydrogen atom is \((h=\text{Planck's constant})\)
A loop moves towards a stationary magnet at constant speed \(V\), resulting in an induced emf \(E\) within the loop. If the magnet also moves away from the loop at the same speed \(V\), the new induced emf in the loop is
Electromagnetic radiations are emitted from a \(15\,\text{W}\) point source. The peak value of the magnetic field at a distance of \(5\,\text{m}\) from the source is
An alternating supply of \(225\,\text{V}\) is applied across a circuit with resistance \(20\,\Omega\) and impedance \(45\,\Omega\). The power dissipated in the circuit is
When photons of energy \(4.2\,\text{eV}\) incident on a photosensitive material of work function \(2.2\,\text{eV}\), photoelectrons are emitted with a maximum linear momentum of \(P\). If photons of energy \(6.2\,\text{eV}\) incident on the same photosensitive material, the maximum linear momentum of the emitted photoelectrons is
At a given place the ratio of the total magnetic field of Earth to the horizontal component of Earth's magnetic field is \(2\). The angle of dip at that place is
The radius of a coil of wire with \(N\) turns is \(0.1\,\text{m}\) and a current of \(2\,\text{A}\) flows in the coil as shown. A long straight wire carrying a current of \(20\pi\,\text{A}\) is located \(0.5\,\text{m}\) from the centre of the coil. The number of turns in the coil if the resultant magnetic field at the centre of the coil is zero is
The effective resistance between \(A\) and \(B\) is _ _ _, where \(R=3\,\Omega\).
Two point charges, \(+2\,\mu\text{C}\) and \(-2\,\mu\text{C}\), are fixed respectively at points \(A\) and \(B\), separated by \(4\,\text{m}\) in air. A point \(P\) is located such that it is \(3\,\text{m}\) from \(+2\,\mu\text{C}\) and \(5\,\text{m}\) from \(-2\,\mu\text{C}\). What is the electric potential at point \(P\)? \[ k=9\times10^9\,\text{N m}^2\text{C}^{-2} \]