List of top Physics Questions asked in AP EAPCET

A truck of mass 2000 kg is moving along a circular path having a radius of curvature of 10 m. If the banking angle is 39°, then the maximum permissible speed of the truck is (Acceleration due to gravity = 10 ms\(^{-2}\), take tan 39° = 0.81):
A motor boat is moving in a river with velocity $\vec{v} = 7\hat{i} + 2\hat{j} - 5\hat{k}$ kms$^{-1}$. If the flow water offers resistive force $\vec{F} = 9\hat{i} + 3\hat{j} - 3\hat{k}$ N, then the power of the boat is
A spring has a spring constant 200 Nm\(^{-1}\). If it is stretched by 1 cm then the potential energy stored in it is:
Which of the following statements is true regarding the vector product of two vectors?
The force required to stop a body of mass 10 kg moving along a straight line path with a velocity of 10 ms\(^{-1}\) in a time of 10 s is:
The density of a substance is 4 g/cc. In a system in which the unit of length is 5 cm and the unit of mass is 20 g, the density of the substance is:
A truck of mass \( M \) and a car of mass \( \frac{M}{10} \) moving with the same momentum are brought to halt by the application of the same breaking force. The ratio of the distances travelled by the truck and car before they come to stop is:
The hole and the free electron concentrations in pure silicon at room temperature are given by $1.4 \times 10^{16}\ \mathrm{m}^{-3}$. When doped with indium, and the hole concentration becomes $4 \times 10^{22}\ \mathrm{m}^{-3}$, the electron concentration is
When A = 0 and B = 1, the output is 0 for
Total emf induced in a coil with \( N \) turns and changing magnetic flux \( \frac{d\phi_B}{dt} \) is:
The axial field \( B_A \) and equatorial field \( B_E \) due to a short bar magnet at equal distances are related as:
A charge oscillating at 750 kHz produces EM waves of frequency:
In hydrogen spectrum, the shortest wavelengths of Lyman and Balmer series are $\lambda_1$ and $\lambda_2$ respectively. The Rydberg constant of hydrogen is
The particle having zero mass is
Electron of charge \( e \) moves in hydrogen atom (radius \( r \)). Coulomb force between nucleus and electron is:
(Here \( K = \frac{1}{4 \pi \varepsilon_0} \))
A parallel plate capacitor is filled with mica (thickness \(1 \times 10^{-3}\) m) and fiber (thickness \(0.5 \times 10^{-3}\) m). Dielectric constants: mica = 8, fiber = 2.5. If fiber breaks at \(6.4 \times 10^6 \, \text{V/m}\), max voltage is:
A flexible wire loop carrying current is placed in external magnetic field. Its shape becomes:
Distance moved by a charged particle in magnetic field (with parallel velocity component) in one rotation is:
In the circuit with 6 V battery and resistors of 2Ω each, current is 2 A. Find potential at B with respect to A.
circuit with 6 V battery and resistors of 2 each
The relation between absolute temperature (T) and pressure (P) in adiabatic process is:
If average KE of gas molecule at \( 27^\circ C \) is \( 3.3 \times 10^{-20} \, \text{J} \), find KE at \( 127^\circ C \):
A vessel withstands 100 atm. It's filled with hydrogen at 27°C (300 K) to 20 atm. Find temp. at which pressure becomes 100 atm.
A rectangular metallic block of size \( 40 \, \text{mm} \times 20 \, \text{mm} \) is pulled with a force of \( 50 \, \text{kN} \). The strain in the block is:
(Shear modulus \( = 40 \times 10^9 \, \text{Nm}^{-2} \))
A particle initially at the mean position is executing simple harmonic motion with an angular frequency \( \frac{\pi}{4} \, \text{rad/s} \). The ratio of the distances travelled by the particle in the first second and second second is:
Force is the mutual interaction between bodies according to: