List of top Questions asked in AP EAPCET- 2022

Match the following:
20 mL of gas \(A\) and 10 mL of gas \(B\) diffuse through a porous membrane separately in 1 minute. If the vapor density of \(B\) is \(X\), what is the vapor density of \(A\)?
Match the following reactions with their corresponding unbalanced equations:
Identify the correct statements from the following:
(i) For adiabatic process, \(\Delta U = W_{\text{adiabatic}}\)
(ii) Work is a path function.
(iii) Volume is an extensive property.
The standard molar enthalpy of vaporisation (\(\Delta_\text{vap} H^\circ\)) of A, B, and C liquids is 23.3, 41, and 29 kJ mol\(^{-1}\) respectively. The correct order of dipole-dipole attractive forces in these liquids is:
If the total electricity required to deposit 1 mole of a metal M is equal to that of 10.7 amperes of current for 10 hours, the equivalent weight of the metal is (atomic weight = M u):
Arrange the following species in the decreasing order of their bond orders:
Identify the element which has highest second ionization enthalpy:
The general formula of the compound formed when a metal (M) of group — 1 reacts with non-metal (x) of group — 16 is:
In which of the following, elements are correctly arranged in the decreasing order of their second ionization enthalpies?
The work function of a metal M is 6.3 eV. The wavelength of the incident radiation required to just eject the electrons from its surface (in nm) is:
Work function \((W_0)\) values of six metals (in eV) are given below:

How many of the above metals do not eject electrons when they are struck with radiation of wavelength 400 nm?
A radioactive element of mass \(1\ \text{kg}\) after \(N\) years is left with only \(125\ \text{g}\). If the half-life of the element is \(12.5\) years, then the value of \(N\) is
For the logic gates shown below, the correct output is
The minimum size of an antenna for transmitting electromagnetic waves at \(1500\ \text{MHz}\) is
A pure semiconductor crystal has \(8\times10^{28}\ \text{atoms m}^{-3}\). It is doped by \(2\ \text{ppm}\) concentration of pentavalent atoms. The number of holes formed in the semiconductor crystal is
\[ (\text{Intrinsic carrier concentration, } n_i=1\times10^{16}\ \text{m}^{-3}) \]
Assertion (A): When a circular coil, placed in a region with its plane parallel to a magnetic field, expands radially outwards, no emf is induced in it. Reason (R): There is a constant magnetic field in the perpendicular (to the plane of the coil) direction.
A circuit containing inductance of \(\frac{1}{6\pi}\ \text{H}\) and a resistance of \(15\ \Omega\) in series. If an AC voltage of \(100\ \text{V}\) and \(60\ \text{Hz}\) is applied to the above circuit, then the current in the circuit and phase difference between voltage and current respectively are
A particle of mass \(1\times10^{-30}\ \text{kg}\) and electric charge \(1.6\times10^{-19}\ \text{C}\) has de-Broglie wavelength \(660\ \text{nm}\). Then kinetic energy of this particle is
\[ (\text{Planck's constant, } h=6.6\times10^{-34}\ \text{J s}) \]
A short magnetic needle is placed in a magnetic field \(B\hat{i}\) in the direction \((\sqrt{3}\hat{i}+\hat{j})\). The needle experiences a torque of \(0.06\ \text{N m}\). If the same magnetic needle is placed in a magnetic field \(2B\hat{j}\) in the direction \((\hat{i}+\sqrt{3}\hat{j})\), the torque experienced by it is
In a plane electromagnetic wave, \(U_E\) and \(U_B\) are average energy densities of electric field and magnetic field respectively, then
Light of wavelength \(1\ \text{nm}\) belongs to the following class of waves
An infinitely long wire carrying \(1\ \text{A}\) current in the \(+Z\) direction is placed at \((1\ \text{cm},1\ \text{cm})\). Another wire carrying \(1\ \text{A}\) in \(+X\) direction is placed at \(y=1\ \text{cm}\). If the magnetic field due to this configuration at the origin is \(\vec{B}\). Let \(B_0\) be the magnitude of the field if only the wire at \((1\ \text{cm},1\ \text{cm})\) was present, then \(\frac{\vec{B}}{B_0}\) is
25 capacitors each of capacitance \(1\ \mu\text{F}\) are connected in series to a battery of \(100\ \text{V}\). The total charge stored on the capacitors is
An observer at rest experiences an electric field due to a static charge. Later he starts moving away from it. Then the observer experiences