List of top Questions asked in AP EAMCET- 2024

Relative permeability (\(\mu_r\)) of a sample is given by \(1<\mu_r<1 + \epsilon\), where \(\epsilon\) is a small positive number. Then the nature of the sample is:
An inductor of inductive reactance 80 \(\Omega\) and a resistor of resistance 60 \(\Omega\) are connected in series to an ac source. The impedance and the power factor of the circuit are respectively:

The ratio of the wavelengths of the first and second Balmer lines of the hydrogen spectrum is: 
 

A carrier wave of peak voltage 16 V is used to transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of 75%?
The speed of a projectile at its maximum height is \( \frac{\sqrt{3}}{2} \) times its initial speed. If the range of the projectile is \( n \) times the maximum height attained by it, then \( n \) is equal to:

Direct solar energy is incident on the horizontal surface at an average rate of 200 W/m². If 20% of this energy can be converted to useful electrical energy, how much area is needed to supply 8 kW?

A simple pendulum with a bob of mass \( m \) and density \( \rho \) and length \( l \) is immersed in a liquid of density \( \sigma \). If it makes small oscillations, then the time period of the pendulum is:
The depth \( d \) at which the value of acceleration due to gravity becomes \( \frac{1}{n} \) times the value at the surface (radius of Earth \( R \)) is:
A block of mass 100 g is attached to the end of a string of unknown material of 50 cm long and cross-sectional area of \(2 \, {cm}^2\). When the block is whirled horizontally at a constant angular speed of 40 m/s, it moves along a circular path of radius 52 cm. Young's modulus of the material is:
A 25 kW drilling machine is drilled for 4 minutes to bore a hole in an aluminium block of mass \(20 \times 10^3\) kg. If 40\% of the work done is utilized to raise the temperature of the block and if the specific heat of aluminium is \(0.9 \, {kJ/kg}^\circ C\), then the rise in temperature of aluminium block is:
At a given temperature, arrange the gases hydrogen, oxygen, nitrogen in the order of maximum rms speeds:

A unit positive charge is moved from point A to point B by a distance of 20 cm, on an equipotential surface as shown in the figure. The work done to move this charge is:

A metallic wire of resistance 30 \( \Omega \) is bent in the form of an equilateral triangle. The resistance between any two vertices of the triangle is:
The time gap between 44% decay and 93% decay of a radioactive substance is 81 minutes. The half-life of the radioactive substance in minutes is:

In the given figures of logic gates, if the inputs are A=1, B=0, and C=1, find the values of \( y_1 \), \( y_2 \), and \( y_3 \) respectively. 

 

In amplitude modulation, the amplitude of the carrier signal is 28 V and the modulation index is 0.4. The amplitude of the side bands is: 
 

A parallel plate capacitor has two plates of area 'A' separated by distance 'd'. The capacitor is charged to a potential difference 'V' and the battery is disconnected. A metal plate with area 'A' and thickness \( \frac{d}{2} \) is inserted between the plates, so that it is always parallel to the plates. The work done on the metal slab while it was inserted is:
The maximum distance between the transmitting and receiving antennas for satisfactory communication in line of sight mode is 57.6 km. If the height of the receiving antenna is 80 m, the height of the transmitting antenna is (Radius of Earth = \( 6.4 \times 10^6 \) m):

The blocks A and B weighing 100 N and 250 N respectively are placed one over the other as shown in the figure. Block B rests on a smooth surface. The coefficient of static friction between A and B is 0.4. When \( F = 250 \, {N} \), the acceleration of the upper block is (Take acceleration due to gravity, \( g = 10 \, {m/s}^2 \)):

A motor car is moving at 40 m/s on a circular road of radius 400 m. If its speed is increasing at the rate of 3 m/s², then its acceleration is:
Two objects of masses 2 kg and 5 kg possess velocities \( 10 \hat{i} \, {m/s} \) and \( 3 \hat{i} + 5 \hat{j} \, {m/s} \) respectively. Then the velocity of C.M. in m/s is:
A diatomic gas does a work of \( \frac{Q}{4} \) when a heat of \( Q \) is supplied to it. Then the molar heat capacity of the gas is:
Which of the following is incorrect regarding the first law of thermodynamics?
On a sonometer, the lengths of two wires are in the ratio \( \frac{35}{34} \), diameters are in the ratio \( \frac{4}{1} \), densities are in the ratio 1:2 and the tensions in the string are in the ratio 8:1. If the note of higher pitch has frequency of 350 Hz then find the frequency of the beats produced when sounded together:

Three glass slabs A, B, C of different media are arranged as shown in the figure. Refractive index of B is 1.3 and the refractive index of C is 1.7. If the number of waves passing through B and C are equal to the total number of waves passing through B and C, then the refractive index of slab A is: