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प्रश्न
What is meant by thermal expansion?
एका वाक्यात उत्तर
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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.
A cubical metal solid block is heated. How will its volume change?
Water is heated from 0°C to 4°C. Will it expand?
An iron washer is heated State the effect on its density.
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
Give reasons for the following:
Telephone wires sag in summer.
Equal volumes of alcohol and mercury are heated uniformly in identical containers separately from 10°C to 50°C. Will both the liquids occupy the same volume? Give reason.
What is thermal expansion?
- Assertion: Gas is highly compressible than solid and liquid
- Reason: Interatomic or intermolecular distance in the gas is comparably high.
