List of top Questions asked in TS EAMCET

The unification of electromagnetism and optics is based on the discovery that

The shape of $CH_4$ (Methane) molecule is:

A wire of length \(100\text{ cm}\) is made of a material of Young’s modulus \(1.6\times10^{11}\text{ Nm}^{-2}\). If work done in stretching this wire by \(0.1\text{ cm}\) is \(2\text{ J}\), then the area of cross-section of the wire (in \(10^{-5}\text{ m}^2\)) is

If sound waves of frequency 169 Hz are incident horizontally on a perfectly rigid vertical wall, then the shortest distance from the wall at which the air particle will have maximum amplitude of vibration is:

If a graph is drawn between the Fahrenheit reading of the temperature of a body along y-axis and twice its Celsius reading on x-axis, then the angle made by the graph with x-axis is

The minimum height from which a block of ice has to be dropped so that it completely melts on reaching the ground is \[ \text{(Assume that the total potential energy of the ice is converted into heat)} \]

The order of the average bond length of the given bonds is

Lenz's law is a consequence of conservation of:

If A, B and C represent the power gain, base resistance and collector resistance respectively of a transistor connected in common emitter configuration, then the common emitter current amplification factor is:

A car is moving with velocity V at the top of a semi-circular hill of radius 40 m such that the normal force on it is zero. Find the velocity (V) of the car. [use $g = 10\ ms^{-2}$]

At $T(K)$ consider the following equilibrium reaction \[ HgO(s) \rightleftharpoons Hg(g)+\frac{1}{2}O_2(g) \] The correct relation between $K_p$ and $P_{Total}(P_T)$ is}

The power \(P\) (in watt) acting on a body of mass \(2\text{ kg}\) is given by \[ 4.5P=8t^2+14t+9 \] where \(t\) is time in second. If the body starts from rest at \(t=0\), then the velocity of the body at time \(t=3\text{ s}\) is

A body is projected from a point which is at a height of \(5\) m from the ground with a velocity of \(28\ \mathrm{ms^{-1}}\) at an angle of \(30^\circ\) above the horizontal. The horizontal distance travelled by the body when it reaches a point which is at a height of \(2\) m from the ground is \[ (g=10\ \mathrm{ms^{-2}}) \]

A circular disc of radius \(15\,cm\) and mass \(10\,kg\) is suspended by a wire attached to its centre. When the wire is twisted by rotating the disc and released, the period of torsional oscillations of the disc is \(1.5\,s\). The torsional spring constant of the wire is nearly:

A hydraulic lift has pistons of areas \(2\text{ cm}^2\) and \(50\text{ cm}^2\). To lift a car placed on the larger piston by a distance of \(150\text{ cm}\), if the work to be done by the smaller piston is \(18\text{ kJ}\), then the force to be applied on the smaller piston is:

In winter, polar stratospheric clouds formed over Antarctica provide surface on which compound X responsible for depletion of ozone is formed. What is X?

Which of the following compounds will not undergo aldol condensation?

Let \(X\) be a discrete random variable. If \[ P(X=r)=\frac{3}{7}a^r,\qquad r=0,1,2,\ldots,\infty,\quad 0<a<1, \] then \(aP(X=2)=\)

The external centre of similitude for circles \[ x^2+y^2+10x-16y-11=0 \] and \[ x^2+y^2-2x+4y-4=0 \] is

If the number density of free electrons in a copper wire is $8.5\times10^{22}cm^{-3}$ and the relaxation time of free electrons in the wire is $2.25\times10^{-14}s$, then the electrical conductivity of copper is (Mass of the electron $=9\times10^{-31}$ kg and charge of the electron $=1.6\times10^{-19}C$)}

At $300\,\mathrm{K}$, a certain reaction has an equilibrium constant equal to 10. The value of $\Delta G^\circ$ for this reaction (in $\mathrm{kJ\,mol^{-1}}$) is:} \[ (R=8.314\,\mathrm{J\,K^{-1}mol^{-1}}) \]

The substance which has an energy band gap equal to the energy of the spectral line corresponding to the shortest wavelength of Paschen series of the hydrogen spectrum is:

Two simple pendulums of lengths \(1\,\mathrm{m}\) and \(1.44\,\mathrm{m}\) are in phase when released from the same extreme position. The minimum time after which the two pendulums will again be in phase is \[ (g=\pi^2\,\mathrm{m\,s^{-2}}) \]

In an ac circuit, if the rms value of current is 2 A and the wattless current is \(\sqrt{3}\) A, then the power factor of the circuit is

Two rods \(A\) and \(B\) of equal dimensions having thermal conductivities \(K\) and \(2K\) respectively are joined in series. Under steady-state conditions, if the temperature difference between the rods \(A\) and \(B\) is \(12^\circ\mathrm{C}\), then the temperature difference between the open ends of the rods \(A\) and \(B\) is