List of top Physics Questions asked in AP EAPCET

If $E_o$ and $B_o$ are the magnitudes of the electric and magnetic fields respectively of an electromagnetic wave in vacuum, then among the following the correct relation is ($\mu_o$ -- permeability of free spa, $\varepsilon_o$ -- permittivity of free spa)
Photoelectrons are emitted with maximum velocity $v$ when light of frequency $3f$ incidents on a photosensitive material of work function $2hf$. If the frequency of the incident light is $4.25 f$, the maximum velocity of the emitted photoelectrons is (h -- Planck's constant)
If '$\mu$' is the magnetic moment of an electron revolving around hydrogen nucleus in an orbit of principal quantum number 'n', then
A radioactive decay forms an isotope of the original nucleus with the emission of the following particles
A reverse biased zener diode when operated in the breakdown region works as
The current amplification factor and the collector current in a transistor circuit are 100 and 2.2 mA respectively. Then the base current is
Digital signal
If the unrtainty in velocity of an electron $(\Delta v)$ is $0.1 \text{ m/s}$, the unrtainty in its position $(\Delta x)$ is (given: $m_e = 9.1 \times 10^{-31} \text{ kg}$)
If a physical quantity ‘Q’ is defined in terms of moment of inertia ‘I’, force ‘F’, velocity ‘V’, work ‘W’ and length ‘L’ as \[ Q = \frac{IFV^2}{WL^3} \] then ‘Q’ is
A particle starts moving from rest under a constant acceleration, and covers a distance ‘X’ in ‘t’ seconds. The distance covered in next ‘t’ seconds is
A juggler throws balls vertically into the air such that he throws the next ball when the previous one is at its highest point. If he throws 3 balls each second, then the maximum height reached by each ball is
(Acceleration due to gravity \(g = 10~\text{ms}^{-2}\))
A solid sphere of mass \( M \) and radius \( R \) is free to rotate about an axis passing through its centre. A solid cylinder of mass \( \frac{M}{2} \) and radius \( R \) is free to rotate about its standard axis of symmetry. Initially both the sphere and the cylinder are at rest. If torques of equal magnitude are applied to the sphere and the cylinder, the ratio of the angular speeds acquired by the sphere and the cylinder after a given time is
A wire of length 0.1\(\pi\) m having linear density \( \frac{1}{\pi} \) kg m\(^{-1}\) is bent in the form of a ring. The moment of inertia of the ring about an axis passing through its centre and perpendicular to its plane is
A 200 kg steel bar sits horizontally on two supports as shown in the figure. The force on each support is (\( g = 9.8 \, \text{ms}^{-2} \))
steel bar sits horizontally
The part of the stress-strain curve where the Hooke's Law is valid is
stress-strain curve where the Hooke’s Law is valid is
Two soap bubbles of radii \( r_1 \) and \( r_2 \) in vacuum coalesce isothermally to form a new bubble. The radius of the new soap bubble is
The temperature of the surface of Sun is 6000 K. The wavelength corresponding to the maximum energy is nearly (Wien's constant, \( b = 2.89 \times 10^{-3} \, \text{mK} \))
During an adiabatic process of a monatomic gas, the relation between absolute temperature (\( T \)) and pressure (\( P \)) is \( P \propto T^X \). The value of \( X \) is
A gas is compressed from a volume of \(23~\text{m}^3\) to \(17~\text{m}^3\) at a constant pressure of \(50~\text{Nm}^{-2}\). If \(50~\text{J}\) of heat is added to the gas, then the change in its internal energy is
If the percentage increase in the pressure of a given mass of gas in a container at constant temperature is 100%, then its volume
If the speed of a wave doubles as it passes from shallow water into deeper water, its wavelength will be
Three charges \(+Q\), \(q\), \(+Q\) are placed respectively, at distances \(0\), \(\frac{d}{2}\), and \(d\) from the origin on the x-axis. If the net force experienced by \(+Q\) placed at \(x = 0\) is zero, then the value of \(q\) is
A conducting sphere of radius \(R\) carrying a charge \(Q\) lies concentrically inside an uncharged conducting shell of radius \(2R\). If they are joined by a metal wire, then the charge flowing to the shell and the amount of heat produced are respectively:
An uncharged parallel plate capacitor with dielectric constant \(K\) is connected to a similar air-cored capacitor which is charged to a potential \(V_0\). If the common potential is \(V\), then the value of \(K\) is
If \(n\), \(e\), \(\tau\), and \(m\) represent the concentration, the charge, the relaxation time, and the mass of an electron in a metal, then the resistance of a wire made of the metal of length \(l\) and cross-sectional area \(A\) is: