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प्रश्न
What is meant by thermal expansion?
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उत्तर
The increase in size of a body on heating is called thermal expansion.
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संबंधित प्रश्न
Equal volumes of different liquids expand by a different amount when they are heated to the same rise in temperature.
One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
A metal plate is heated. State three factors on which the increase in its area will depend.
An iron washer is heated. State the effect on its mass.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Solids ______ on heating and ______ on cooling.
Borosilicate glass do not expand much on being heated.
- Assertion: Gas is highly compressible than solid and liquid
- Reason: Interatomic or intermolecular distance in the gas is comparably high.
