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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
The increase in length of a metal rod depends on
State three factors on which depend the linear expansion of a metal rod on heating.
Two identical rods of copper are heated to different temperatures — one by 5°C and the other by 10°C. Which rod will expand more?
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.
Define the following term:
Coefficient of cubical expansion
Borosilicate glass do not expand much on being heated.
If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.
When the vibrations move from one molecule to another molecule heat will flow.
