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प्रश्न
State one application of thermal expansion of liquids.
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
Two iron rods – one 10 m long and the other 5 m long, are heated to the same rise in temperature. Which will expand more?
A cubical metal solid block is heated. How will its volume change?
What is the velocity of thermal radiations?
What is meant by thermal expansion?
What are the different types of thermal expansions?
Distinguish between a clinical and a laboratory thermometer.
Give reasons for the following:
Telephone wires sag in summer.
Give reasons for the following:
In cold countries, water pipes burst in winter.
Analogy:
Expansion is length:: Linear expansion.
Expansion in volume:: ______.
When we cool the liquid it will become ______.
