If the cubic expansivity of brass between 27oC and 100oC is 5.7 x 10-5K-1, What is its linear expansivity?
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
Verified Correct Answer: B.
Physical Principles & Numerical Solution
\(\alpha\) = \(\frac{\Delta}{3} = \frac{5.7 \times 10^{-5}}{3}\)
= 1.90 x 10-5K-1
Source: Myschool Past Questions Archive (Record #33572)