Questions

The coefficient of linear expansion of nickel is $13×{{10}^{-6}}^{\text{\hspace{0.17em}}\circ }{\text{C}}^{\text{-1}}$ . Find its coefficients of areal and cubical expansion?

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a
26×10−6 ∘C-1,39×10−6 ∘C-1
b
2.6×10−7 ∘C-1,3.9×10−7 ∘C-1
c
6×10−6 ∘C-1,9×10−6 ∘C-1
d
2×10−6 ∘C-1:3×10−6 ∘C-1
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detailed solution

Correct option is A

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

Similar Questions

The coefficient of expansion of a crystal in one direction (x-axis) is 2.0x 10-6 K-1 and that in the other two perpendicular (y-and z-axes) direction is 1.6 x 10-6 K-1 What is the coefficient of cubical expansion of the crystal?

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