Question

The coefficient of cubical expansion of a metal is 72x10° C. Find lis (1) coefficient of line
expansion, (ii) coefficient of superficial expansion

please explain it and tell the answer step by step​

Answer 1

Relation between coefficient of linear expansion(α), coefficient of superficial expansion (β) and coefficient of cubical expansion (γ) is

α:β:γ=1:2:3⇒γ=23β

According to question; γ=xβx=23