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If the cubic expansivity of brass between 27oC and 100oC is 5.7 x 10-5K-1, What is its ...

If the cubic expansivity of brass between 27oC and 100oC is 5.7 x 10-5K-1, What is its linear expansivity?
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  • A 2.85 x 10-5K-1
  • B 1.90 x 10-5K-1
  • C 1.86 x 10-5K-1
  • D 1.70 x 10-5K-1
  • E 1.63 x 10-5K-1
Correct Answer: Option B
Explanation:
\(\alpha\) = \(\frac{\Delta}{3} = \frac{5.7 \times 10^{-5}}{3}\)
= 1.90 x 10-5K-1

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