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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.
What is matter? What is it composed of?
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.
Describe an experiment to showthat air expands on heating.
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
What is the velocity of thermal radiations?
The diagram shows a sketch graph showing a change in volume of a given mass of ice at -5°C to water at 15°C.
(i) Why does the temperature along BC remain constant?
(ii) When is the volume of water minimum?
(iii) At what temperature does water have maximum density? Explain.
Borosilicate glass do not expand much on being heated.
What is thermal expansion?
