Explain the linear expansion of solids with suitable examples.
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The length of objects can be changed due to differences in temperature. Length of an object changes when it is heated or cooled by an amount proportional to its original length. This is known as Linear expansion.
Linear expansion △L = αL°×△T where α is coefficient of a linear expansion.
Different objects have different coefficient of linear expansion depending on material of object is made from.
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Explanation:
When something is heated or cooled, its length changes by an amount proportional to the original length and the change in temperature: linear expansion : ΔL=αL0ΔT (α is the coefficient of linear expansion) The coefficient of linear expansion depends only on the material an object is made from.
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