List of top Physics Questions asked in AP EAPCET

If a wheel starting from rest is rotating with an angular acceleration of $\pi$ rad s$^{-2}$, then the number of rotations made by the wheel in the 6th second is
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If the radius of gyration of a thin circular ring about an axis passing through its centre and perpendicular to its plane is $10\sqrt{2}$ cm, then its radius about its diameter is
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A ball is projected from a point with a speed $v$, at a certain angle with the horizontal. From the same point and at the same instant, a person starts running with a constant speed $0.5v$, to catch the ball. If the person catches the ball after some time, then the angle of projection of the ball is
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If bullets are fired in all possible directions from same point with equal velocity of 10 m s$^{-1}$ and an angle of projection 45$^\circ$, then the area covered by the bullets on the ground nearby (acceleration due to gravity 10 m s$^{-2}$) is
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If a car travels 40% of the total distance with a speed $v_1$, then the remaining distance with the car is
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The heights of the transmitting and receiving antennas are respectively $\frac{1}{2000}$ and $\frac{1}{5000}$ times the radius of the Earth. The maximum distance between these two antennas for satisfactory communication in line of sight is}
(Radius of the Earth = 6.4 $\times 10^6$ m)
If the half-life of a radioactive material is 10 years, then the percentage of the material decayed in 30 years is
At absolute zero temperature, an intrinsic semiconductor behaves as
The minimum wavelength of X-rays produced by 20 keV electrons is nearly
In a solenoid, if the current of 15 A passes through the solenoid of length 25 cm, radius 2 cm, and number of turns 500, then the magnetic moment of the solenoid is
The maximum magnetic field produced by a current of 12 A passing through a copper wire of diameter 1.2 mm is
When photons of energy 8 $\times 10^{-19}$ J incident on a photosensitive material, the work function of the photosensitive material is nearly 10 eV, then the maximum kinetic energy of the photoelectrons emitted is
(1) 3.5 eV
(2) 2.5 eV
(3) 2.0 eV
(4) 1.0 eV
The self-inductance of an air-cored solenoid of length 40 cm, diameter 7 cm having 200 turns is
If the magnetic field in a plane progressive wave is represented by the equation $B = 2 \times 10^{-8} \sin (0.5 \times 10^3 t + 1.5 \times 10^4 x)$ T, then the frequency of the wave is
A coil of inductive reactance $\frac{1}{\sqrt{3}} \Omega$ and a resistance 1 $\Omega$ are connected in series to a 200 V, 50 Hz ac source. The time lag between voltage and current is
Two moving coil galvanometers A and B having identical springs are placed in magnetic fields of 0.25 T and 0.5 T respectively. If the number of turns in A and B are 36 and 48, the areas of the coils A and B are 2.4 $\times 10^{-3}$ m$^2$ and 4.8 $\times 10^{-3}$ m$^2$ respectively, then the ratio of the current sensitivities of the galvanometers A and B is
An electric charge $10^{-3}\, \mu C$ is placed at the origin of the x-y plane. The potential difference between points A and B located at $(\sqrt{2}\, m, \sqrt{2}\, m)$ and $(2m, 0m)$ respectively is
An electric dipole with dipole moment $2 \times 10^{-10}\, C \cdot m$ is aligned at an angle $30^\circ$ with the direction of a uniform electric field of $10^4\, N/C$. The magnitude of the torque acting on the dipole is
The area of cross-section of a copper wire is $4 \times 10^{-7} m^2$ and the number of electrons per cubic meter in copper is $8 \times 10^{28}$. If the wire carries a current of 6.4 A, then the drift velocity of the electrons (in $10^{-3} m/s$) is
If a dielectric slab of dielectric constant 3 is introduced between the plates of a capacitor having electric field $1.5\, N/C$, then the electric displacement is

If each resistance in the given figure is 9 $\Omega$, then the reading of the ammeter (A) is

In Young's double slit experiment, if the distance between the slits is 2 mm and the distance of the screen from the slits is 100 cm, the fringe width is 0.36 mm. If the distance between the slits is decreased by 0.5 mm and the distance of the screen from the slits is increased by 50 cm, the fringe width becomes
According to Rayleigh, when sunlight travels through atmosphere, the amount of scattering is proportional to $n^{th}$ power of wavelength of light. Then the value of $n$ is
When both the source of sound and observer approach each other with a speed equal to 10% of the speed of sound, then the percentage change in frequency heard by the observer is nearly
If some heat is given to a metal of mass 100 g, its temperature rises by 20 $^\circ$C. If the same heat is given to 20 g of water, the change in its temperature (in $^\circ$C) is (The ratio of specific heat capacities of metal and water is 1:10)