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प्रश्न
What do you understand by thermal expansion of a substance?
उत्तर
The expansion of a substance on heating is called the thermal expansion of the substance.
संबंधित प्रश्न
Equal volumes of different liquids expand by a different amount when they are heated to the same rise in temperature.
Kerosene contracts on heating.
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In the ball and ring experiment, if the ball after heating is left to cool on the ring for sometime, the ball again passes through the ring. Explain the reason.
Iron rims are heated before they are fixed on the wooden wheels.
State one application of thermal expansion of liquids.
What is the velocity of thermal radiations?
What is meant by thermal expansion?
What are the different types of thermal expansions?
Define the following term:
Coefficient of superficial expansion
Thermal expansion is always a nuisance.
What difference do you think heating the solid will make in their molecules?
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.
How solids are expanded on heating?
What type of glassware is used in laboratories? Why?
