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Unit - 6.1 Heat Transfer — PHYSICS STD 8 — Question

ICSE BoardEnglish MediumSTD 8PHYSICSUnit - 6.1 Heat Transfer1 Mark
Question
Define the following terms:Superficial expansion
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Answer

Superficial expansion is a type of thermal expansion in which whenever a solid is heated, its surface area increases. This type of expansion is known as superficial expansion or area expansion.

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