Recent questions in 11th Physics

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Two thermometers are constructed in the same way except that one has a spherical bulb and the other an elongated cylindrical bulb. Which one will response quickly to temperature

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A thermometer has wrong calibration. It reads the melting point of ice as –` 10^oC`. It reads `60^oC` in place of `50^oC`. What is the temperature of boiling point of water on the

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Write the advantages and disadvantages of platinum resistance

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If the volume of block of metal changes by 0.12% when it is heated through `20^oC`. What is the co-efficient of linear expansion of the

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The density of a solid at `0^oC and `500^oC` is in the ratio 1.027 : 1. Find the coefficient of linear expansion of the

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If one Mole of a monatomic gas is mixed with 3 moles of a diatomic gas. What is the molecular specific heat of the mixture at constant

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Calculate the difference between two principal specific heats of 1g of helium gas at N. T. P. Given Molecular weight of Helium = 4 and J = 4.186 J/cal and Universal Gas constant, R = 8.314J / mole /

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Why does heat flow from a body at higher temperature to a body at lower

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A one liter flask contains some mercury. IT is found that at different temperatures, then volume of air inside the flask remains the same. What is the volume of mercury in the flask? Given the co-efficient of linear expansion of glass `= 9 × 10^(-6) `/ `'^oC` and co-efficient of volume expansion of mercury `= 1.8 × 10^(-4)` /`'^

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Define triple point of

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State Dulong and petit

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Why the clock pendulums are made of invar, a material of low value of coefficient of linear

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Why does the density of solid | liquid decreases with rise in

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Two bodies at different temperatures T1, and T2 are brought in thermal contact do not necessarily settle down to the mean temperature of T1 and

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The resistance of certain platinum resistance thermometer is found to be 2.56 Ω at 00c and 3.56 Ω at `100^oc`. When the thermometer is immersed in a given liquid, its resistance is observed to 5.06 Ω. Determine the temperature of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Calculate Cp for air, given that `Cv =0.162 cal g^(-1) k^(-1)` and density air at N.T. P is `0.001293

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Develop a relation between the co-efficient of linear expansion, co-efficient superficial expansion and coefficient of cubical expansion of a

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Calculate the amount of heat required to convert 1.00kg of ice at – 100c into steam at 1000c at normal pressure. Specific heat of ice = 2100J|kg|k. Latent heat of fusion of ice `= 3.36xx10^5J|kg`, specific heat of water = 4200J|kg|k. Latent heat of vaporization of water =

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A ball is dropped on a floor from a height of 2cm. After the collision, it rises up to a height of 1.5m. Assuming that 40% of mechanical energy lost goes to thermal energy into the ball. Calculate the rise in temperature of the ball in the collision. Specific heat capacity of the ball is 800J/k. Take `g =

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Why is temperature gradient required for flow of heat from one body to

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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