List of top Physics Questions asked in TS EAMCET

The layer of the atmosphere which efficiently reflects high frequency waves particularly at night is

Two wires A and B made of same material and areas of cross-section in the ratio $1:2$ are stretched by same force. If the masses of the wires A and B are in the ratio $2:3$, then the ratio of the elongations of the wires A and B is

If the half life of an element is 10 minutes, then the time taken (in minutes) for the element to decay from 20% to 80% is

The force of mutual attraction between any two objects by virtue of their masses is

An alpha particle and a proton are accelerated from rest in a uniform electric field. The ratio of the times taken by proton and alpha particle to attain equal displacements is

Three logic gates are connected as shown in the figure. If the inputs are A=1, B=0 and C=1, then the values of \(y_1, y_2\) and \(y_3\) respectively are

A uniform circular disc of mass $\dfrac{\pi}{40}$ kg is rotating about an axis passing through its center and perpendicular to its plane with an angular speed of 150 rev/min. If the angular momentum of the disc is 6.25 Js, then its radius is:

A proton and an alpha particle enter a uniform electric field perpendicular to the direction of the field. The ratio of distances travelled by the proton and the alpha particle in the direction of the field after a time of $t$ seconds is:

A body is projected from the earth's surface with a speed \(\sqrt{5}\) times the escape speed (\(V_e\)). The speed of the body when it escapes from the gravitational influence of the earth is

Two point charges $+2\mu C$ and $+8\mu C$ are placed at a distance of 15 cm apart in air. At a point on the line joining these two charges where the net electric field becomes zero, a third charge of $+5\mu C$ is placed. The net electrostatic force acting on $+5\mu C$ charge is

A solid sphere of radius 18 cm is rolling down from rest from the top of an inclined plane of length 14 m and angle of inclination $30^\circ$. The time taken by the sphere to reach the bottom of the inclined plane is (Acceleration due to gravity = $10~\text{m s}^{-2}$)

If the magnetization of a bar magnet of area of cross-section 0.75 cm$^2$ and magnetic moment 2.7 Am$^2$ is $4 \times 10^5$ Am$^{-1}$, then the length of the magnet is

If the ratio of the mass numbers of two nuclei is 27:125, then the ratio of their surface areas is

The maximum length of water column that can stay without falling in a vertically held capillary tube of diameter 1mm and open at both the ends is (Acceleration due to gravity = 10 ms$^{-2}$ and surface tension of water = 0.07 Nm$^{-1}$)

A current of 4 A is passed through a square loop of side 5 cm made of a uniform manganin wire as shown in the figure. The magnetic field at the centre of the loop is

If the de Broglie wavelength of a proton accelerated through a potential difference $V_1$ is same as the de Broglie wavelength of an alpha particle accelerated through $V_2$, then $V_1 : V_2 = $

When an unknown resistance is connected in the left gap and a resistance of 15 $\Omega$ is connected in the right gap of a meter bridge, the balancing point is found to be at 40 cm from the left end of the bridge wire. The emf of the battery of negligible internal resistance used in the circuit is 2 V. If the current drawn from the battery is 280 mA, the resistance of the bridge wire per unit length is

The radius of a coil of N turns is R. If the plane of the coil is placed parallel to a uniform magnetic field B, then the flux linked with the coil is

The ratio of frequencies of second line of Lyman series and third line of Balmer series of hydrogen atom is:

Six particles each of mass 100 g are placed at the six vertices of a regular hexagon of side $10\sqrt{3}$ m. The moment of inertia of the system of particles about an axis passing through any two diagonally opposite vertices of the hexagon is

The initial and final velocities of a body projected vertically from the ground are \( 20 \, \text{ms}^{-1} \) and \( 18 \, \text{ms}^{-1} \) respectively. The maximum height reached by the body is (Acceleration due to gravity = \( 10 \, \text{ms}^{-2} \))

A body of mass 'm' moving with a velocity of 'v' collides head on with another body of mass '2m' at rest. If the coefficient of restitution between the two bodies is 'e', then the ratio of the velocities of the two bodies after collision is

A solid sphere of mass 2 kg and radius 50 cm is rotating about its diameter with an angular speed of $50 rad s^{-1}$. The angular momentum of the sphere is