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प्रश्न
State one application of thermal expansion of liquids.
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उत्तर
APPLICATION OF THERMAL EXPANSION OF LIQUIDS: An important application is mercury thermometer or alcohol thermometer.
When the bulb of the thermometer is kept in contact with a hot body the mercury expands and the level of mercury rises in the capillary tube.
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संबंधित प्रश्न
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
An iron washer is heated. State the effect on its mass.
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Give scientific reason.
The telephone wires which sag in summer become straight in winter.
Define the following term:
Coefficient of cubical expansion
Complete the following sentence:
When ice melts its volume ______ and density _______.
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.
