List of top Questions asked in AP EAPCET

Which of the following oxides is highly basic?

Correct order of basic strength of metallic hydroxides

Which of the following electronic transitions in hydrogen atom will require the highest energy?

An amplitude modulated wave is represented by \( 10[1 + 0.6 \sin(40 \times 10^3 t)] \sin(4 \times 10^6 t) \) volt where t is in seconds. Then the ratio of the upper to the lower side band frequencies is

Match the following
List-I (Elements)
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Noble gases
List-II (Valence shell Configuration)
I. \( ns^2 np^6 \)
II. \( ns^2 np^5 \)
III. \( ns^2 \)
IV. \( ns^1 \)

When the temperature of a semiconductor increases then

The distance of closest approach of an alpha particle to a nucleus when the alpha particle moves towards the nucleus with linear momentum P is d. The distance of closest approach of alpha particle to nucleus, if the linear momentum of the alpha particle is 1.5 P

The strongest force in nature is

The maximum kinetic energy of the emitted photoelectrons from a photosensitive material of work function \( \phi \), when light of frequency 'v' incidents on it is 'E'. If the frequency of the incident light is 3v, the maximum kinetic energy of the emitted photoelectrons is

If \( \vec{E} \) and \( \vec{B} \) are the electric and magnetic field vectors of an electromagnetic wave, then the direction of propagation of the electromagnetic wave is

For a CE transistor amplifier, the current amplification factor is 59 and the emitter current is 6.6 mA. Then the base current is

An inductor is connected to an ac source of frequency 50 Hz. The frequency of the instantaneous power developed in the circuit is

When the current through an inductor is changed from 2 A to 6 A in time 2 s, emf induced in it is 3 V. Then the inductance of the inductor is

A charged particle when enters a uniform magnetic field moves in a helical path. If its angular velocity is \( 4\pi \times 10^6 \) rad s\(^{-1} \) and its velocity in the direction of magnetic field is \( 3 \times 10^5 \) ms\(^{-1} \) then the pitch of the helix is

Between the plates of a parallel plate capacitor of plate area A and capacity 0.025 \( \mu \)F, a metal plate of area A and thickness equal to \( \frac{1}{3} \) of the separation between the plates of the capacitor is introduced. If the capacitor is charged to 100 V, then the amount of work done to remove the metal plate from the capacitor is

The force acting per unit length when a very long straight conductor is carrying a steady current of 1 A and the direction of the current is from south to north is (The horizontal component of the earth's magnetic field at the place is \( 3 \times 10^{-5} \) T and the direction of the field is from the geographical south to geographical north.)

The incorrect statement regarding the given circuit

In some ferromagnetic materials magnetization disappears on the removal of the external magnetic field. Such materials are called

In the circuit given below, if the bulb is to glow with maximum intensity, the value of 'R' is (neglect internal resistance of the cell)

The amplitude of a wave, represented by displacement equation \( y = \frac{1}{\sqrt{a}} \sin \omega t \pm \frac{1}{\sqrt{b}} \cos \omega t \) will be

In a region, the intensity of an electric field is given by \( \vec{E} = (2\hat{i} + 3\hat{j} + \hat{k}) \) NC\(^{-1} \). The electric flux through a surface of area \( 10 \hat{i} \) m\(^2 \) in the region is

For the given concentration, if the ratio of the diameters of the molecules of two gases is 1 : 2, then the ratio of their mean free paths is

A monatomic gas at 630 K expands adiabatically to 27 times its initial volume. The final temperature of the gas is

The figure shows three points A, B and C in a uniform electric field \( (\vec{E}) \). The line AB is perpendicular to BC and BC is parallel to \( \vec{E} \). If \( V_A \), \( V_B \) and \( V_C \) are the potentials at A, B and C respectively, then the correct option is

The relation \( I = I_0 \cos^2 \theta \) is (I\( _0 \) - Intensity of incident light on the analyser, I - intensity of emergent light from the analyser, \( \theta \) - angle between plane of polarization and the axis of analyser)