List of top Questions asked in AP EAPCET- 2022

The response and behavior of an organism with environment and other organisms of its biotic community is called:

Consider a transistor amplifier in common emitter configuration. If the current amplification factor, collector resistance and base resistance are increased by 1%, 2% and 1% respectively, then the change in voltage gain is:

Identify the muscles that are ectodermal in origin:

The frequency band for downlink satellite communication is in the range:

Which products of cell wear and tear get accumulated in lysosomes with age in the cell body of neuron?

The supportive skeletal structures in epiglottis and pubic symphysis of human being are examples of:

Radiations of two photons having energy three and nine times the work function of a metal are incident on the metal surface successively. The ratio of maximum velocities of photoelectrons emitted in two cases are:

Light with an energy flux of \(20 \, W \, cm^{-2}\) falls on a non-reflecting surface at normal incidence. If the surface has an area of \(25 \, cm^2\), then the total momentum delivered for complete absorption during a 15 minute time span is:

The correct option from the following statements is:
Statement 1: Binding energy per nucleon is higher for heavy nuclei \((A > 170)\).
Statement 2: Binding energy per nucleon is lower for light nuclei \((A < 30)\).
Statement 3: Binding energy per nucleon in the range \(30 < A < 170\) is nearly constant since nuclear force is strong and short-ranged.
Statement 4: Binding energy per nucleon is higher for both light nuclei \((A < 30)\) and heavy nuclei \((A > 170)\).

A hydrogen atom is excited to level \(n\) where its potential energy is found to be \(-1.088\, \text{eV}\). The magnitude of \(n\) is:

The spatial component of a wave function is given by \(\psi = A[\sin(ax)\cos(bx) + \cos(ax)\sin(bx)]\). The wavelength of the wave is:

A 10 \(\Omega\) resistor takes a current of 5 A. The thermal energy developed in 40 s is:

A current of 5 A exists in a square loop of side length 5 cm. The magnitude of the magnetic field at the centre of the square loop is approximately:

Two long and parallel straight wires A and B carrying current 5 A each in the same direction. If the force on a 5 cm section of wire B is \(5 \times 10^{-6}\, \text{N}\), then the separation between the two wires is (Given \( \mu_0 = 4\pi \times 10^{-7} \, \text{SI} \)).

A circular loop of area \(0.04 \, m^2\) is rotating in a uniform magnetic field of \(0.4 \, T\). The loop rotates about its diameter which is perpendicular to the magnetic field. The magnetic flux through the loop when the plane of the coil is normal to the field and when it is making \(30^\circ\) with the field are respectively (in Wb).

Consider a series LCR circuit connected to an AC source. The resistance, inductive reactance and capacitive reactance are \(R, X_L, X_C\) respectively. If the current in this circuit lags the source voltage then the correct option is:

Consider the following statements:
Statement A: Magnetic monopoles do not exist and therefore magnetic field lines form closed loops.
Statement B: A bar magnet makes an angle of \(30^\circ\) with a uniform magnetic field. If the maximum torque experienced by the magnet is \(3.464 \times 10^{-5}\,\text{Nm}\), the potential energy of the system is \(3 \times 10^{-5}\,\text{J}\).
Statement C: A superconductor is a perfect ferromagnetic material.

A rectangular coil of length 2 cm and width 1.25 cm with 250 turns carries a current of 55 μA and is subjected to a magnetic field of strength 0.64 T. Work done in rotating the coil by 180° against the torque is:

To produce dispersion without deviation, a thin prism of angle \(15^\circ\) made of glass (refractive index 1.45) is combined with another prism made of glass of refractive index 1.75. The prisms are arranged such that refracting angles are in opposite direction. Find the angle of second prism.

Three charges 1 C, 2 C and 3 C are placed at points (1, 0, 0), (0, 2, 0) and (0, 0, 3) respectively. The distances are measured in metre along the three axes. The magnitude of the electric field at the origin is:

In Young’s double slit experiment, the ratio of intensities of dark and bright fringes is 16:36. The ratio of amplitudes of the two light waves is:

Current density in a cylindrical wire of radius \(R\) varies with radial distance as \(\beta (r + r_0)^2\). The current through the section of the wire shown in the figure is (β is a constant).

The work done in assembling three charged particles A, B and C of charges \(2 \times 10^{-5} C\), \(3 \times 10^{-5} C\) and \(4 \times 10^{-5} C\) respectively at the vertices of an equilateral triangle of side 10 cm is \([ \frac{1}{4\pi\varepsilon_0} = 9 \times 10^9 ]\).

A Carnot engine is working between a source at constant temperature \(T_1\) and a sink at temperature \(T_2\). Its efficiency is \(\frac{1}{8}\). Upon decreasing the temperature of the sink by 50°C, the efficiency becomes \(\frac{1}{4}\). Find \(T_1\) and \(T_2\).

A Carnot engine operating between 430 K and 330 K does a work of 60 kJ. The amount of ice that can melt from its exhaust is (Latent heat of fusion of ice = 330 J g\(^{-1}\)).