Question

what is superficial expansion, explain it

Answer 1

The amount by which unit area of a material increases when the temperature is raised by one degree is called the coefficient of  superficial (i.e. area)  expansion and is represented by β (Greek beta).If a material having an initial surface area A1 at temperature t1 and having a coefficient of superficial expansion β....!

Answer 2

hey friend ,

superficial expansion is defined as when heat is given to any metallic object then the expansion takes place ,

when expansion takes place in area is termed as superficial expansion.

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