What is Linear Expansion?

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What is Linear Expansion?
« on: June 19, 2015, 12:16:17 PM »
Linear Expansion: Expansion in length of solids on heating is called linear expansion. The observed expansion in length depends upon the original length and the change in temperature.
It has been found experimentally that the change in length is directly proportional to the original length and the change in temperature of the solid.