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

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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 3: Calorimetry - Short Answers [पृष्ठ ४६]

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एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
अध्याय 3 Calorimetry
Short Answers | Q 10 | पृष्ठ ४६

संबंधित प्रश्न

A body cools from 80° C to 70° C in 5 minutes and to 62° C in the next 5 minutes. Calculate the temperature of the surroundings.


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


Which of the curves in the following figure represents the relation between Celsius and Fahrenheit temperatures?


Is heat a conserved quantity?


Water equivalent of a body is measured in ___________ .


When a hot liquid is mixed with a cold liquid, the temperature of the mixture ____________ .


Which of the following pairs of physical quantities may be represented in the same unit?


Two bodies at different temperatures are mixed in a calorimeter. Which of the following quantities remains conserved?


Heat and work are equivalent. This means, ____________ .


A metre scale made of steel is calibrated at 20°C to give correct reading. Find the distance between the 50 cm mark and the 51 cm mark if the scale is used at 10°C. Coefficient of linear expansion of steel is 1.1 × 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 steel wire of cross-sectional area 0.5 mm2 is held between two fixed supports. If the wire is just taut at 20°C, determine the tension when the temperature falls to 0°C. Coefficient of linear expansion of steel is 1.2 × 10–5 °C–1 and its Young's modulus is 2.0 × 10–11 Nm–2.


Answer the following question.

Clearly, state the difference between heat and temperature?


‘An object contains more heat’- is it a right statement? If not why?


Our normal body temperature is ______.


Temperature in the form of energy.


Give reasons for the following:

Hot metal ball of 80° C is dipped into water of 80°C. The ball will not contract.


The degree of hotness and coldness of a body is called ______.  


The temperature of a liquid drops from 365 K to 361 K in 2 min. Find the time during which the temperature of the liquid drops from 344 K to 342 K.

(Take, room temperature = 293 K)


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