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Thermal Expansion

A circular pi...

Question

A circular piece is cut from a flat metal sheet. The sheet is, then, placed in a furnace. Will the size of hole become larger of smaller? Explain.

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Solution

Size of hole will increase. When the sheet is placed in furnace, whole sheet will expand. Hole will expand as it is a cut piece of flat metal. So the radius of hole will increase when we will heat the sheet.

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