The increase in the length of an iron rod on heating is called linear thermal expansion.

True

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False

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Q. The increase in the length of an iron rod on heating is called

Q. Assertion :The expansion produced in the matter due to absorption of heat energy is called Thermal Expansion Reason: The coefficient of linear expansion decreases with the increase of temperature.

Across:

3. When a solid is heated, it in all the directions.
5. is an alloy of iron and nickel used in the making of pendulum.
6. A quantity which remains unchanged during thermal expansion of a solid is .

Down:

1. The increase in surface area of the solid on heating is called expansion.
2. There is increase in of metal rod during linear expansion.
4. glass is used for making kitchen glassware due to its low coefficient of cubical expansion.

Q. An iron bar of length 10 m is heated from

0^{\circ}

C to

100^{\circ}

C. If the coefficient of linear thermal expansion of iron is

10 \times 10^{- 6} /^{\circ}

C, the increase in the length of bar is

An iron bar of length 10 m is heated from $0^{0} C to 100^{0} C$ . If the coefficient of linear thermal expansion of iron is $10 \times 1 0^{- 6} /^{0} C$ the increases in the length of the bar is

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