List of top Questions asked in AP EAPCET- 2022

Respiratory pigments found in Annelida are

Which hypothetical larva is considered as the ancestor of all Echinoderms?

Which scientist is regarded as the pioneer in the field of systematics of invertebrates?

For an amplitude modulated (AM) wave, the minimum amplitude is 4.0 V and the modulation index is 0.4. The maximum amplitude is:

For which of the following combinations of A, B, and C, does the output \(Y\) become 0 in the given logic circuit?

Which of the following hormones secreted by kidney during deficiency of oxygen stimulates the bone marrow to produce more RBC?

Which muscle is described as functional syncytium?

Dynamic constancy of internal environment of an organism is called

2 kg of a pure radioactive substance after a passage of \(N\) years is left with only 125 g of pure substance. The half-life of the radioactive substance is 12.5 y. Find the value of \(N\).

Assertion (A): Microwave oven heats a food item containing water molecules most efficiently.
Reason (R): Resonant frequency of water molecules matches the frequency of microwaves generated by microwave oven.

The shortest wavelength in the Lyman series of hydrogen \([R_H = 1.097 \times 10^7~\text{m}^{-1}]\) is:

An inductor of 200 \(\mu\)H is connected to an alternating source of frequency 50 Hz. Then the inductive reactance is:

The incorrect statement among the following is (I = Intensity of incident radiation, f = frequency of incident radiation):

The type of electromagnetic waves that are produced due to rapid acceleration and deceleration of electrons in aerials is:

If each of the resistances in the circuit is 10 \(\Omega\), the resistance between terminals A and B is:

The magnetic field at a point inside a long current-carrying solenoid compared to the magnetic field at the axial end point is:

Currents flowing through two conductors of equal resistance produce 9 times more heat in the first conductor compared to the second one. The ratio of currents flowing through the first and second conductors is:

Relative permeability of diamagnetic, paramagnetic and ferromagnetic materials are denoted by \(\mu_r^{DM}, \mu_r^{PM}\) and \(\mu_r^{FM}\) respectively. Then:

A circular loop of area \(5~\text{mm}^2\) is placed coaxially inside a long solenoid that has 1000 turns/cm and carries a sinusoidally varying current of amplitude 1 A and angular frequency \(\omega\). If the amplitude of the emf induced in the loop is \(4.4 \times 10^{-4}~\text{V}\), then the value of \(\omega\) is:

Consider the following statements:
Statement (A): The restoring couple in the moving coil galvanometer is due to the current in the coil.
Statement (B): Wires of magnetic field around a current carrying straight conductor will be circular in a plane parallel to the conductor.
Statement (C): When a charged particle enters a uniform magnetic field, its kinetic energy increases.

A small ball of mass 5 g is suspended by a string of length 20 cm in a horizontal uniform electric field of \(1 \times 10^3~\text{N/C}\). If the ball is in equilibrium when the string makes an angle 60° with the vertical, then the net charge on the ball is:
[Acceleration due to gravity = 10 m/s\(^2\)]

The electric potential at points along x-direction is given by \(V = (1.0~\text{V/m}^2) x^2\). The electric field at point \(x = 5.0~\text{m}\) on x-axis is:

Two charges \(q_1 = 4 \times 10^{-6}~\text{C}\) and \(q_2 = -2 \times 10^{-6}~\text{C}\) are separated by 8 cm. The distance of the point from \(q_1\) on the line joining the charges where the potential vanishes is:
(Potential at infinity is assumed to be zero)

A car is approaching a factory siren that has a frequency of 510 Hz. The speed of sound in air is 340 m/s. If the apparent frequency of the sound as heard by the car driver is 600 Hz, then the speed of the car is:

A point on a taut string is moving up and down due to a wave travelling along it. The point completes 120 cycles in one fourth of a minute. The frequency of the wave is: