List of top Physics Questions asked in TS EAMCET

A train is moving with a speed of 198 kmph. If the distance between the rails is 120 cm and the vertical component of earth's magnetic field is $0.25 \times 10^{-4}$ T, the induced emf between the ends of the axle of the train is:
Two charged particles enter a uniform magnetic field normally. If the ratio of the specific charges of the two particles is 2:3, then the ratio of the times taken by the two particles to complete one revolution is:
The properties required for a material to be used as the core of an electromagnet are:
If the magnitude of electric field in a conductor is $200\ \text{NC}^{-1}$ and the current density is $10^9\ \text{Am}^{-2}$, then the resistivity of the material of the conductor is:
If a charge of 3 nC is placed at each vertex of a cube of side 3 m, then the electric potential at the centre of the cube is:
If a 20 W bulb and a 100 W fan are used for 5 and 15 hours a day respectively, then the electrical energy consumed in a period of 30 days is:
The magnetic field (in $10^{-4}$ T) at the centre of a toroid of mean radius 10 cm with 200 turns and carrying a current of 2.5 A is:
A convex lens produces clear images when placed at two positions between an object and a screen that are 1 m apart. If the distance between the two positions of the lens at which clear images are formed is 20 cm, the focal length of the lens is:
The distance between the objective and eyepiece of an astronomical telescope when the final image forms at infinity is 62 cm. If the magnification of the telescope is 30, the focal lengths of the objective and eyepiece respectively are:
In a medium, a source produces 60 crests and 60 troughs in a time of 0.2 s. If the distance between a crest and its adjacent trough is 100 cm, then the speed of sound in the medium is:
An observer moves towards a source at rest with a speed of 25% of the speed of sound in air. If the frequency of the sound emitted by the source is 200 Hz, then the frequency of sound heard by the observer 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:
The specific heat capacity of one mole of water is (R is the universal gas constant):
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:
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$^2$):
When a metal wire of area of cross-section $1.5\times10^{-6}$ m$^2$ is subjected to a tension of 45 N, the decrease in its area of cross-section is $3\times10^{-10}$ m$^2$. If the Poisson’s ratio of the material of the wire is 0.4, the Young’s modulus of the material of the wire is:
The weight of a body at a height of 3$R_E$ from the surface of the earth is 90 N, where $R_E$ is the radius of the earth. The weight of the same body at a height of $R_E$ from the surface of the earth is:
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 $=4200\ \mathrm{J\,kg^{-1}K^{-1}}$):
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 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:
The efficiency of a Carnot heat engine is 25%. If the absolute temperature of the sink is increased by 10%, then the efficiency of the engine becomes:
The displacement of a body executing simple harmonic motion is $y = 8\cos(\pi t)$ cm. The displacement of the body in the time interval between 1.5 s and 2.5 s is:
A bullet of mass $m$ moving with a velocity $u$ gets embedded in a block of mass $M$ initially at rest. If $\mu$ is the coefficient of friction between the block and the ground, then the displacement of the block due to the impact is:
The blades of a windmill generating electrical energy sweep out an area of 20 m$^2$. If the efficiency of the windmill is 25% and wind speed is 36 kmph, then the electrical power generated is (Density of air = 1.2 kg m$^{-3}$):
A uniform metre scale of mass 700 g is suspended horizontally using two strings tied at 20 cm and 70 cm marks on the scale. The tension in the string at 70 cm mark is (Acceleration due to gravity = 10 m/s$^2$):