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