List of top Physics Questions asked in TS EAMCET

The number of significant figures in the measurement of a length 0.079000 m is: 

Two convex lenses of focal lengths 20 cm and 30 cm are placed in contact with each other co-axially. The focal length of the combination is: 

The velocity of a particle having a magnitude of 10 ms^-1 in the direction of 60° with positive X-axis is

If the electrical potential at a point on the surface of a hollow conducting sphere of radius R is V, then the electric potential at a point which is at a distance R/3 from the centre of the sphere is: 

The ratio of the radii of two solid spheres of same mass in 2:3. The ratio of the moments of inertia of the spheres about their diameters is: 

A point source of light is placed at the focus of a concave mirror. Consider only paraxial rays. The shapes of the wavefronts of incident and reflected lights respectively are: 

An amplitude-modulated wave is represented by cm (t) = 10[1+0.6 sin(1250t)] sin(103 t). Then the modulation index is: 

Which of the following statements is true about LEDs

At very high frequencies, the current (i) in the given circuit is: 

A cylinder of mass m and material density ρ hanging from a string is lowered into a vessel of cross - sectional area A containing a liquid of density σ (< ρ) until it is fully immersed. The increase in pressure at the bottom of the vessel is: 

A player can throw a ball to a maximum horizontal distance of 80 m. If he throws the ball vertically with the same velocity, then the maximum height reached by the ball is: 

A wire of resistance 2R is stretched such that its length is doubled. Then the increase in its resistance is: 

An engine is dragging a mass of 5000 kg with a velocity of 5 ms^-1 along a smooth inclined plane of inclination 1 in 50. Then the power of the engine is 

Among the following statements, the correct statement for a wave is:

The Fahrenheit and Kelvin scales of temperature will have the same reading at a temperature of: 

Heavy water is used to moderate in nuclear reactor because

A cylindrical vessel, open at the top, contains 15 liters of water. Water drains out through a small opening at the bottom. 5 liters of water comes out in time t1, the next 5 litre in further time t₂, and the last 5 litre in further time t₃. then: 

A copper disc of radius 0.1 m rotates about an axis passing through its center and perpendicular to its plane with 10 revolutions per second in a uniform transverse magnetic field of 0.1 T. The emf induced across the radius of the disc is:

In a hypothetical Bohr hydrogen atom, if the mass of the electron is double then the energy of the electron in the first orbit is: 

If γ is the susceptibility and μr is the relative permeability of a ferromagnetic substance, then

The displacement of a particle executing simple harmonic motion is given by x = 2cos(t) where t is the time in seconds then the time period of the particle is: 

Three long, straight, parallel wires carrying different currents are arranged as shown in the diagram. In the given arrangement, let the net force per unit length on the wire C be F. If the wire B is removed without disturbing the other two wires, then the force per unit length on wire A is: 

Photodiodes are mostly operated in reverse biased conditions because: 

The dimensions of four wires if the same material are given below. The increase in length is maximum in the wire of :