List of top Physics Questions asked in TS EAMCET

A parallel plate capacitor of capacitance 10 \(\mu\)F is charged by a 220 V supply. The capacitor is then disconnected from the supply and is connected to another uncharged parallel plate capacitor of capacitance 12 \(\mu\)F. The loss of electrostatic energy in this process is

If the temperature of a gas is increased from 127 °C to 527 °C, then the rms speed of the gas molecules

The ratio of the work done, change in internal energy and heat absorbed when a diatomic gas expands at constant pressure is

An air column in a tube of length 50 cm, closed at one end is vibrating in its fifth harmonic. The phase difference between a particle at the open end and a particle at 42 cm from the open end is

When 'n' identical mercury drops combine to form a single big drop

A solid sphere and a thin uniform circular disc of same radius are rolling down an inclined plane without slipping. If the acceleration of the sphere is 3 ms\(^{-2}\), then the acceleration of the disc is

A wooden block of outer volume 1 litre and specific gravity \(\frac{3}{4}\) having a cavity floats with half of its volume immersed in water. Then the volume of the cavity is

A meteor of mass 'm' having a speed 'v' at infinity reaches the surface of the earth with a speed of (\(v_e\) is escape speed from the earth's surface)

If the amplitudes of a damped harmonic oscillator at times t=0, \(t_1\) and \(t_2\) are \(A_0\), \(A_1\) and \(A_2\) respectively, then the amplitude of the oscillator at a time of \((t_1+t_2)\) is

The work to be done to produce a strain of \(10^{-3}\) in a steel wire of mass 2.96 kg and density 7.4 gcm\(^{-3}\) is (Young's modulus of steel = \(2 \times 10^{11}\) Nm\(^{-2}\))

A thin uniform wire of mass 'm' and linear density '\(\rho\)' is bent in the form of a circular ring. The moment of inertia of the ring about a tangent parallel to its diameter is

A circular path of radius 75 m is banked at an angle of \(\tan^{-1}(0.2)\). If the coefficient of static friction between the tyres of the car and the circular path is 0.1, then the maximum permissible speed of the car to avoid slipping is

A body projected at certain angle (\(\neq 90^\circ\)) from the ground crosses a point in its path at a time of 2.3 s and from there it reaches the ground after a time of 5.7 s. The maximum height reached by the body is (Acceleration due to gravity = 10 ms\(^{-2}\))

In an experiment, the coefficient of viscosity (in mPa s) of a liquid was determined as 2.62, 2.68, 2.58, 2.57, 2.54 and 2.55. The mean absolute error in the determination of the coefficient of viscosity of the liquid is

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

The graph between the input voltage ($V_i$) and the output voltage ($V_o$) of a transistor connected in common emitter configuration is shown in the figure. The active, saturation and cutoff regions of the transistor are respectively

If a nucleus P converts into a nucleus Q by the decay of one alpha particle and two $\beta^-$ particles, then the nuclei P and Q are

Which of the following logic gates is a universal gate?

When photons incident on a photosensitive material of work function 1.5 eV, the maximum velocity of the emitted photoelectrons is $8\times10^5$ ms$^{-1}$. The stopping potential of the photoelectrons is (Mass of the electron $= 9\times10^{-31}$ kg and charge of the electron $= 1.6\times10^{-19}$ C)

The potential energy of an electron in an orbit of hydrogen atom is -6.8 eV. The de Broglie wavelength of the electron in this orbit is ($r_0$ is Bohr radius)

If a radioactive substance decays 10% in every 16 hours, then the percentage of the radioactive substance that remains after 2 days is

An emf of 2.8 mV is induced in a rectangular loop of area 150 cm$^2$ when the current in the loop changes from 3 A to 8 A in a time of 0.2 s. Then the self-inductance of the loop is

A capacitor and a resistor of resistance $100\sqrt{3}\Omega$ are connected in series to an ac source of voltage $100\sin(200t)$ V, where 't' is time in second. If the phase difference between the voltage and the current in the circuit is 30$^\circ$, then the capacitance of the capacitor is

The amplitude of the electric field associated with a light beam of intensity $\frac{15}{\pi}$ Wm$^{-2}$ is

A solenoid of 1000 turns per metre has a core of material with relative permeability 400. The windings of the solenoid are insulated from the core and a current of 2 A is passed through the solenoid. Then the value of the magnetic intensity inside the solenoid is