Define coefficient of linear expansion. Give its unit.

1.	Define coefficient of linear expansion. Give its unit.
Answer» The coefficient of linear expansion of the material of a solid rod is defined as the increase in length per unit original length per degree rise in its temperature. The unit of a_L is°C^-1 (or KT^-1 )

Answer»

The coefficient of linear expansion of the material of a solid rod is defined as the increase in length per unit original length per degree rise in its temperature.

The unit of a_L is°C^-1 (or KT^-1 )

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Define coefficient of linear expansion. Give its unit.

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