List of top Questions asked in TS EAMCET

The wavelength of the monochromatic light used in Young's double slit experiment is 550 nm and the screen is placed at a distance of 120 cm from the plane of the slits. If third dark fringe is formed on the screen at a distance of 1.5 mm from the central bright fringe, then the distance of separation between the two slits is
The de Broglie wavelength associated with an electron accelerated through a potential difference of 2400 V is nearly
If the rate of change in electric flux between the plates of a capacitor is \(9\pi \times 10^3 \text{ Vms}^{-1}\), then the displacement current inside the capacitor is
A cannon on a cliff 55 m above the ground fires a shell with a velocity of \(50\hat{i}+50\hat{j}\) ms\textsuperscript{−1}. The displacement vector of the shell when it hits the ground is (Acceleration due to gravity = 10 ms\textsuperscript{−2})
The properties required for a material to be used as the core of an electromagnet are:
The fundamental force in nature which operates among heavier elementary particles only is
Which of the following forces have infinite range?
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
If the amplitude of a damped harmonic oscillator becomes half of its initial amplitude in a time of 10 s, then the time taken for the mechanical energy of the oscillator to become half of its initial mechanical energy 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
In Young's double slit experiment, if the distance between 5th bright and 7th dark fringes is 3 mm, then the distance between 5th dark and 7th bright fringes is
Four electric charges 2 µC, Q, 4 µC and 12 µC are placed on x-axis at distances x = 0, 1 cm, 2 cm and 4 cm respectively. If the net force acting on the charge at origin is zero, then Q =
In the $\beta^{+}$ decay, the particle emitted along with neutron and positron is
A ball of mass 250 g moving with a speed of 72 kmph is deflected by a batsman by an angle of 120$^\circ$ without changing its initial speed. The impulse imparted to the ball is:
A tank is filled with water to a height of 80 cm. The speed of efflux of water through a hole on the side wall near its bottom is (g = 10 m/s$^2$):
The energy required to increase the radius of a soap bubble from 3 cm to 4 cm is (Surface tension = $3\times10^{-2}$ N/m):
A metal plate of mass 50 g is heated to a temperature of $200^\circ\mathrm{C}$ and then immersed in 150 g of water at $20^\circ\mathrm{C}$. If the temperature of the water is $50^\circ\mathrm{C}$ at equilibrium, then the specific heat capacity of the metal is (specific heat capacity of water $=4200\ \mathrm{J\,kg^{-1}K^{-1}}$):
A pendulum clock gains 6 s per day when the temperature is $296\ \mathrm{K}$ and gains 9 s per day when the temperature is $291\ \mathrm{K}$. The temperature at which the pendulum clock loses 12 s per day is:
In an experiment, the angular width of interference fringes for a light of wavelength 5896 Å is found to be $3.5\times10^{-3}$ radian. The wavelength of light for which the angular width of the fringes becomes 10% greater is:
The minimum velocity of a projectile is 50% of its maximum velocity. If the minimum velocity of the projectile is $10~\text{m s}^{-1}$ then the time of flight of the projectile is (Acceleration due to gravity = $10~\text{m s}^{-2}$
A wheel with 12 metallic spokes each 40 cm long is rotated with an angular speed of 15 rads$^{-1}$ in a plane normal to the horizontal component of earth's magnetic field. If the horizontal component of earth's magnetic field at the place is $4\times10^{-5}$ T, then the induced emf between the axle and the rim of the wheel is
The height of a television transmitting antenna is 70 m. If the receiving antenna is at the ground level, then the service area covered by the transmitting antenna is nearly (Radius of the earth = 6400 km)
A straight wire carrying current \( I \) is lying along the axis of a circular loop carrying current \( I \). The force on this wire due to the circular loop is proportional to (Assume the axis of the circular loop is perpendicular to the plane of the loop).
The potential difference between points C and D of the electrical circuit shown in the figure is
A motor cyclist is travelling towards north with a uniform speed of 10 ms\textsuperscript{−1} and a train is travelling towards north-west with a uniform speed of 102 ms\textsuperscript{−1}. The direction of motion of the motor cyclist as observed by a passenger in the train is