List of top Questions asked in AP EAMCET

Eight capacitors each of capacity $ 2 $ µF are arranged as shown in the figure. The effective capacitance between A and B is:

If $ E_1 = 4V $ and $ E_2 = 12V $, the current in the circuit and potential difference between the points P and Q respectively are:

Two identical cells gave the same current through an external resistance of $ 2 $$\omega$ regardless of whether the cells are grouped in series or parallel. The internal resistance of the cells is:

Three rings, each with equal radius $ r $, are placed mutually perpendicular to each other and each having centre at the origin of the coordinate system. If $ I $ is the current passing through each ring, the magnetic field value at the common centre is:

One bar magnet is in simple harmonic motion with time period $ T $ in an earth’s magnetic field. If its mass is increased by 9 times, the time period becomes:

A coil of inductance $ L $ is divided into 6 equal parts. All these parts are connected in parallel. The resultant inductance of this combination is:

A 50 Hz AC circuit has a 10 mH inductor and a 2 $\omega$ resistor in series. The value of capacitance to be placed in series in the circuit to make the circuit power factor unity is:

The structure of solids is investigated by using:

The surface of a metal is first illuminated with a light of wavelength 300 nm and later illuminated by another light of wavelength 500 nm. It is observed that the ratio of maximum velocities of photoelectrons in two cases is 3. The work function of the metal value is close to:

The ratio of the minimum wavelength of the Balmer series to the maximum wavelength in the Brackett series in the hydrogen spectrum is:

If \[ \frac{x^2+3}{x^4+2x^2+9} = \frac{Ax+B}{x^2+ax+b} + \frac{Cx+D}{x^2+cx+d} \] then $ aA + bB + cC + dD = $

The half-life period of a radioactive element A is 62 years. It decays into another stable element B. An archaeologist found a sample in which A and B are in 1 : 15 ratio. The age of the sample is:

The current gain of a transistor in a common emitter configuration is 80. The resistances in collector and base sides of the circuit are 5 k$\omega$ and 1 k$\omega$ respectively. If the input voltage is 2 mV, the output voltage is:

The normal drawn at a point $ (2, -4) $ on the parabola $ y^2 = 8x $ cuts again the same parabola at $ (\alpha, \beta) $. Then $ \alpha + \beta $ is:

Which of the following is correct statement?

A light body of momentum $ P_L $ and a heavy body of momentum $ P_H $, both have the same kinetic energy, then:

The interval containing all the real values of $ x $ such that the real valued function \[ f(x) = \sqrt{x} + \frac{1}{\sqrt{x}} \] is strictly increasing is:

A block of mass 18.5 kg kept on a smooth horizontal surface is pulled by a rope of 3 m length by a horizontal force of 40 N applied to the other end of the rope. If the linear density of the rope is 0.5 kgm$^-1$ and initially the block is at rest, the time in which the block moves a distance of 9 m is

A man of mass 70 kg jumps to a height of 0.8 m from the ground, then the momentum transferred by the ground to the man is
(g = 10 m/s$^{-2}$):

The length of the tangent drawn from the point $ \left(\frac{k}{4}, \frac{k}{3}\right) $ to the circle $ x^2 + y^2 + 8x - 6y - 24 = 0 $ is:

Evaluate the expression \[ 2 \cot h^{-1}(4) + \sec h^{-1}\left( \frac{3}{5} \right). \]

In the given circuit, the potential difference across the 5 $\mu$F capacitor is

If the period of the function $ f(x) = \frac{\tan 5x \cos 3x}{\sin 6x} $ is $ \alpha $, then find $ f \left( \frac{\alpha}{8} \right) $:

The number of Guanines and Adenines present in the DNA molecule of pitch at 170° with 130 Hydrogen bonds between base pairs:

A certain volume of a gas at 300 K expands adiabatically until its volume is doubled. The resultant fall in temperature of the gas is nearly (The ratio of the specific heats of the gas is 1.5)