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Should a Thermometer Bulb Have Large Heat Capacity Or Small Heat Capacity?

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प्रश्न

Should a thermometer bulb have large heat capacity or small heat capacity?

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उत्तर

The thermometer bulb should have large heat capacity because if it has lower heat capacity, it may expand at high temperatures resulting in false readings. Large heat capacity of the thermometer bulb ensures the correct reading of temperature by restricting the bulb from expanding.

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अध्याय 25: Calorimetry - Short Answers [पृष्ठ ४६]

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एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
अध्याय 25 Calorimetry
Short Answers | Q 10 | पृष्ठ ४६

संबंधित प्रश्न

The dimensions of emissive power are ______.


What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale?


The kinetic energy per molecule of a gs at temperature T is ________.

(a) `(3/2)RT`

(b) `(3/2)K_BT`

(c) `(2/3) RT`

(d) `(3/2)("RT"/M)`


Does the temperature of a body depend on the frame from which it is observed?


It is said that mercury is used in defining the temperature scale because it expands uniformly with  temperature. If the temperature scale is not yet defined, is it logical to say that a substance expands uniformly with temperature?


Can the bulb of a thermometer be made of an adiabatic wall?


An aluminium sphere is dipped into water at 10°C. If the temperature is increased, the force of buoyancy


In a calorimeter, the heat given by the hot object is assumed to be equal to the heat taken by the cold object. Does it mean that heat of the two objects taken together remains constant?


When a solid melts or a liquid boils, the temperature does not increase even when heat is supplied. Where does the energy go?


A person's skin is more severely burnt when put in contact with 1 g of steam at 100°C than when put in contact with 1 g of water at 100°C. Explain


A concrete slab has a length of 10 m on a winter night when the temperature is 0°C. Find the length of the slab on a summer day when the temperature is 35­°C. The coefficient of linear expansion of concrete is 1.0 × 10–5 °C–1.


A railway track (made of iron) is laid in winter when the average temperature is 18°C. The track consists of sections of 12.0 m placed one after the other. How much gap should be left between two such sections, so that there is no compression during summer when the maximum temperature rises to 48°C? Coefficient of linear expansion of iron = 11 × 10–6 °C–1.


A pendulum clock shows correct time at 20°C at a place where g = 9.800 m s–2. The pendulum consists of a light steel rod connected to a heavy ball. It is taken to a different place where g = 9.788 m s–1. At what temperature will the clock show correct time? Coefficient of linear expansion of steel = 12 × 10–6 °C–1.


The densities of wood  and benzene at 0°C are 880 kg m3 and 900 kg m–3 , respectively. The coefficients of volume expansion are 1.2 × 10–3 °C–1 for wood and 1.5 × 10–3 °C–1for benzene. At what temperature will a piece of wood just sink in benzene?


Explain the meaning of heat and work with suitable examples.


Heat is measured in Celsius or centigrade.


The average kinetic energy of molecules of a gas is directly related to which physical quantity?


When two bodies at different temperatures are placed in contact, heat flows from ______.


Which state of matter has particles that vibrate about fixed equilibrium positions?


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