Physics

Physics

Problem

Which of the following gives the approximate relation between the coefficient of superficial expansion (β) and the coefficient of linear expansion (α) for an isotropic solid? a) β  ≈  3α\beta\;\approx\;3\alpha b) β  ≈  2α\beta\;\approx\;2\alpha c) β  ≈  α\beta\;\approx\;\alpha d) β  ≈  α2\beta\;\approx\;\dfrac{\alpha}{2}

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