List of top Physics Questions asked in TS EAMCET

A rocket is about to launch upwards from its platform. The engine ejects gas at a rate of 2100 kg/s and the molecules are expelled at 50 m/s. If the above condition is just sufficient to make it rise upwards, the mass of the rocket is (Assume $g = 10\, ms^2$)
Elastic strain energy of 10 J is stored in a loaded copper rod of cross-sectional area $2 times 10^{-4} m^2$ and length 0,2 in, Hie Young?? modulus for copper is 125 GPa. The load on the copper rod in kN is
The CGS unit of coefficient of viscosity is
An electron moves in a combined electric and magnetic field, the electric field being $1.5 \times 10^3 \, V/m$ and magnetic field being 0.75 T. If the resultant force on the moving electron is to be zero, the minimum velocity of the electron in km s is
A cannon ball is fired from a building of height h at the sea shore with a velocity v at an angle of a upwards from the horizontal, targeting a ship at a horizontal distance of S from the shore, as shown in the figure. If 'g' denotes the acceleration due to gravity, tan $\alpha$ governed by the quadratic equation is
Which of the set has different dimensional formulae :
Hie equation of motion of a panicle is given by $x(t) = 2t^3 + t^2 + 4t$. Then the average velocity of the particle between the time t = 3 s to t = 5 s is
Consider a ship traveling due east along the equator with velocity $v_0$. If southeastern wind blows at an angle of $' \phi '$ to the equator with velocity $'v'$, the wind velocity relative to the ship $v'$ and the angle between the equator and the wind direction in the reference frame fixed to the ship are
A metre scale made of steel reads accurately at $25^{\circ} C$ . Suppose in an experiment an accuracy of $0.06\, mm$ in $1\,m$ is required, the range of temperature in which the experiment can be performed with this metre scale is (coefficient of linear expansion of steel is $ 11 \times 10^{-6} /^{\circ} \, C$ )
A thermocol box has a total wall area (including the lid) of $1.0 m ^{2}$ and wall thickness of $3 cm$. It is filled with ice at $0^{\circ} C$. If the average temperature outside the box is $30^{\circ} C$ throughout the day, the amount of ice that melts in one day is [Use $K_{\text {thermocol }}=0.03 W / mK$ $.L_{\text {fusion (ice) }}=3.00 \times 10^{5} J / kg ]$
A parallel beam of light of intensity \(I_0\) is incident on a coated glass plate. If \(25\%\) of the incident light is reflected from the upper surface and \(50\%\) of light is reflected from the lower surface of the glass plate, the ratio of maximum to minimum intensity in the interference region of the reflected light is
Consider a solenoid carrying current supplied by a DC source with a constant emf containing iron core inside it. When the core is pulled out of the solenoid, the change in current will
A wooden box lying at rest on an inclined surface of a wet wood is held at static equilibrium by a constant force $F$ applied perpendicular to the incline. If the mass of the box is $1\,kg$, the angle of inclination is $30^{\circ}$ and the coefficient of static friction between the box and the inclined plane is $0.2$, the minimum magnitude of $\vec{F}$ is (Use $ g = 10\,m/s^2$)
A planet of mass $m$ moves in an elliptical orbit around an unknown star of mass $M$ such that its maximum and minimum distances from the star are equal to $r_1$ and $r_2$ respectively. The angular momentum of the planet relative to the centre of the star is
Which of the following principles is being used in Sonar Technology ?
Which of the following is emitted when $^{239}_{94} Pu$ decays into $^{235}_{92}U$ ?
A wire has resistance of $3.1 \,\Omega $ at $30^{\circ} \, C$ and $4.5\, \Omega $ at $100^{\circ} C$ . The temperature coefficient of resistance of the wire is
An AC generator producing 10V(rms) at 200 rad/s is connected in series with a $50 \Omega$ resistor, a 400 mH inductor and a $200 \mu F$ capacitor. The rms voltage across the inductor is
An electron collides with a Hydrogen atom in its ground state and excites it to $n = 3$ state. The energy given to the Hydrogen atom in this inelastic collision (neglecting the recoil of Hydrogen atom) is
An object is thrown vertically upward with a speed of $30\, m/s$. The velocity of the object half-a-second before it reaches the maximum height is
A current flows in a conductor from east to west. The direction of the magnetic field at a point above the conductor is ................
The ratio of the accelerations due to gravity at heights 1280 km and 3200 km above the surface of the earth is: (Radius of the earth = 6400 km)