List of top Physics Questions on thermal properties of matter asked in TS EAMCET

Nitrogen and oxygen of volumes one litre each at atmospheric pressure are mixed in a closed container of volume three litres. If the process is isothermal, the ratio of final pressure of the mixture and atmospheric pressure is
If the coefficient of volume expansion of honey is $150 \times 10^{-5} K^{-1}$, then the percentage change in its density for $10^{\circ}C$ rise in its temperature is
A metal metre scale that is accurate up to 0.5 mm is made at a temperature of 25$^\circ$C. The range of temperatures within which it can be used is (Coefficient of linear expansion of the metal = $10^{-5}$ /$^\circ$C)
A steel pendulum clock manufactured at 32$^\circ$C and working at 47$^\circ$C is nearly (Coefficient of linear expansion of steel = $12 \times 10^{-6}$ /$^\circ$C)
A cube of side 40 cm is floating with $\frac{1}{4}$th of its volume immersed in water. When a circular disc is placed on the cube, it floats with $\frac{2}{5}$th of its volume immersed in water. The mass of the disc is
A steel rod with a circular cross-section of diameter 1cm and another steel rod with a square cross-section of side 1cm have equal mass. If the two rods are subjected to same tension, the ratio of the elongations of the two rods is
If the radiation emitted by a perfect radiator has maximum intensity at a wavelength of 2900 Å, the intensity of radiation emitted by it is (Stefan-Boltzmann's constant = \(5.67 \times 10^{-8}\) Wm\(^{-2}\)K\(^{-4}\) and Wein's constant = \(2.9 \times 10^{-3}\) mK)
The temperature of a body shown by a faulty Celsius thermometer is 49 °C and by a correct Fahrenheit thermometer is 122 °F. The correction to be applied to the faulty thermometer 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
When 'n' identical mercury drops combine to form a single big drop
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 rectangular ice box of total surface area of 1000 cm$^2$ initially contains 1.5 kg of ice at 0 $^\circ$C. If the thickness of the walls of the box is 2 mm and the temperature outside the box is 42 $^\circ$C, then the mass of the ice remaining in the box after 160 minutes is (Thermal conductivity of the material of the box = $10^{-2}$ Wm$^{-1}$K$^{-1}$ and latent heat of the fusion of ice = $336\times10^3$ Jkg$^{-1}$)
The temperature at which the reading on Fahrenheit scale becomes 90% more than the reading on Celsius scale is
The Young's modulus and Poisson's ratio of a material are respectively Y and $\sigma$. The force required to decrease the area of cross-section of a wire made of this material by $\Delta A$ is
A thin film of water is formed between two straight parallel wires each of length 8 cm separated by distance of 0.6 cm. The work done to increase the distance between the wires to 0.8 cm is (Surface tension of water = 0.07 Nm$^{-1}$)
The heat required to convert 8 g of ice at a temperature of \( -20^\circ\text{C} \) to steam at \( 100^\circ\text{C} \) is [Specific heat capacity of ice = \( 2100 \, \text{Jkg}^{-1}\text{K}^{-1} \), specific heat capacity of water = \( 4200 \, \text{Jkg}^{-1}\text{K}^{-1} \), latent heat of fusion of ice = \( 336 \times 10^3 \, \text{Jkg}^{-1} \) and latent heat of steam = \( 2.268 \times 10^6 \, \text{Jkg}^{-1} \)]
The length of a metal rod is 20 cm and its area of cross-section is \( 4 \, \text{cm}^2 \). If one end of the rod is kept at a temperature of \( 100^\circ\text{C} \) and the other end is kept in ice at \( 0^\circ\text{C} \), then the mass of the ice melted in 7 minutes is (Thermal conductivity of the metal = \( 90 \, \text{Wm}^{-1}\text{K}^{-1} \) and latent heat of fusion of ice = \( 336 \times 10^3 \, \text{Jkg}^{-1} \))
If the terminal velocity of a metal sphere of mass 8 g falling through a liquid is 3 \( \text{cms}^{-1} \), then the terminal velocity of another sphere of mass 64 g made of the same metal falling through same liquid is
The work done in blowing a soap bubble of diameter 3 cm is (Surface tension of soap solution = 0.035 \( \text{Nm}^{-1} \))
If a brass sphere of radius 36 cm is submerged in a lake at a depth where the pressure is \( 10^7 \) Pa, then the change in the radius of the sphere is (Bulk modulus of brass = 60 GPa)
The power of a refrigerator that can make 15 kg of ice at 0 °C from water at 30 °C in one hour is
To increase the length of a metal rod by 0.4%, the temperature of the rod is to be increased by (Coefficient of linear expansion of the metal = \(20 \times 10^{-6}\) °C⁻¹)
An air bubble rises from the bottom to the top of a water tank in which the temperature of the water is uniform. The surface area of the bubble at the top of the tank is 125% more than its surface area at the bottom of the tank. If the atmospheric pressure is equal to the pressure of 10 m water column, then the depth of water in the tank is
An air bubble rises from the bottom to the top of a water tank in which the temperature of the water is uniform. The surface area of the bubble at the top of the tank is 125% more than its surface area at the bottom of the tank. If the atmospheric pressure is equal to the pressure of 10 m water column, then the depth of water in the tank 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 $=4200\ \mathrm{J\,kg^{-1}K^{-1}}$):