List of top Physics Questions asked in TS EAMCET

If the temperature of a gas is increased from \( 27^\circ C \) to \( 159^\circ C \), the increase in the rms speed of the gas molecules is:
If the length of a string is \(P\) when the tension in it is 6 N and its length is \(Q\) when the tension in it is 8 N, then the original length of the string is:
Normally a capacitor is connected across the output terminals of a rectifier to
The maximum horizontal range of a ball projected from the ground is 32 m. If the ball is thrown with the same speed horizontally from the top of a tower of height 25 m, the maximum horizontal distance covered by the ball is: (Acceleration due to gravity \( g = 10 \, \text{m/s}^2 \)) \vspace{0.5cm}
A 60 kg man standing on a bridge, jumps vertically down onto a 540 kg boat moving in the river below him with a speed of 10 m/s. The change in the speed of the boat is:
A 31.4 kg girl wearing high heel shoes balances on a single heel. The heel is circular with a diameter of 2 cm. The pressure exerted by the heel on the horizontal floor is (Acceleration due to gravity = 10 m/s\(^2\)):
If half of the space between the plates of a parallel plate capacitor is filled with a medium of dielectric constant 4, the capacitance is \( C_1 \). If one-third of the space between the plates of the capacitor is filled with the medium of dielectric constant 4, the capacitance is \( C_2 \). If in both cases, the dielectric is placed parallel to the plates of the capacitor, then \( C_1 : C_2 \) is:
A paramagnetic substance in the form of a cube of side 3 cm has a magnetic moment of \(243 \times 10^{-6}\) Am\(^2\), when a magnetic field of intensity \(150 \times 10^{3}\) Am\(^{-1}\) is applied. The susceptibility of the substance is:
A current carrying wire is first bent in the form of a circular loop and then bent in the form of a square loop. The ratio of the magnetic fields induced at the centres of the loops in the two cases is:

A zener diode of zener voltage 30 V is connected in a circuit as shown in the figure. The maximum current through the Zener diode is:
 

A man of mass 80 kg goes to the market on a scooter of mass 100 kg with certain speed. On applying brakes, the stopping distance is \( S_1 \). The man returns home on the same scooter, with the same speed, with a 60 kg bag of rice. If \( S_2 \) is the new stopping distance when the brakes are applied with the same force, then:
A voltmeter of resistance \(400 \, \Omega\) is used to measure the emf of a cell with an internal resistance of \(4 \, \Omega\). The error in the measurement of emf of the cell is:
The speed of a transverse wave in a stretched string 'A' is 'v'. Another string 'B' of same length and same radius is subjected to same tension. If the density of the material of the string 'B' is 2\% more than that of 'A', then the speed of the transverse wave in string 'B' is

If Planck's constant is \( 6.63 \times 10^{-34} \) Js, then the slope of a graph drawn between cut-off voltage and frequency of incident light in a photoelectric experiment is:

A block is placed in front of a convex lens as shown in the figure. Choose the most appropriate image of the block from the following options:
A block is placed in front of a convex lens

The tension applied to a metal wire of one metre length produces an elastic strain of 1%. The density of the metal is \( 8000 \, kg/m^3 \) and Young's modulus of the metal is \( 2 \times 10^{11} \, Nm^{-2} \). The fundamental frequency of the transverse waves in the metal wire is: 

The sphere A of mass \( m \) moving with a constant velocity hits another sphere B of mass \( 2m \) at rest. If the coefficient of restitution is 0.4, the ratio of the velocities of the spheres A and B after collision is
If two electromagnetic waves with electric fields given by $$ \vec{E_1} = E_0 \sin (kx - \omega t) \hat{j} $$ and $$ \vec{E_2} = E_0 \sin (kx - \omega t + \pi) \hat{j} $$ - interfere, then the peak value of the electric field of the resultant wave is
Two positive point charges are separated by a distance of 4 m in air. If the sum of the two charges is \( 36 \mu C \) and the electrostatic force between them is \( 0.18 \) N, then the bigger charge is:
The ratio between electric field energy density and magnetic field energy density of an electromagnetic wave, in its region is:

In Bohr model of hydrogen atom, if the difference between the radii of \( n^{th} \) and\( (n+1)^{th} \)orbits is equal to the radius of the \( (n-1)^{th} \) orbit, then the value of \( n \) is:

A solid sphere and a disc of same mass \(M\) and radius \(R\) are kept such that their curved surfaces are in contact and their centers lie along the same horizontal line. The moment of inertia of the two body system about an axis passing through their point of contact and perpendicular to the plane of the disc is:
The half-lives of two radioactive materials A and B are respectively \( T \) and \( 2T \). If the ratio of the initial masses of the materials A and B is 8:1, then the time after which the ratio of the masses of the materials A and B becomes 4:1 is:
The initial and the final temperatures of a black body are $27^\circ C$ and $177^\circ C$ respectively. The increase in the amount of radiation emitted per second is:
The ratio of the degrees of freedom of monatomic and diatomic gas molecules is: