Q.

The coefficient of linear expansion of nickel is 13×10−6 ∘C-1 . Find its coefficients of areal and cubical expansion?

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26×10−6 ∘C-1,39×10−6 ∘C-1

2.6×10−7 ∘C-1,3.9×10−7 ∘C-1

6×10−6 ∘C-1,9×10−6 ∘C-1

2×10−6 ∘C-1:3×10−6 ∘C-1

answer is 1.

(Detailed Solution Below)

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Detailed Solution

coefficient of linear expansion of nickel is α=13×10-6oC-1 to find coefficient of areal expansion of nickel β=?coefficient of cubical expansion of nickel γ=? β=2α ; γ=3α substitute α value in above formlas β=2×13×10-6=26×10-6oC-1 γ=3×13×10-6=39×10-6oC-1

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