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
Correct Answer: Option B
Explanation
(alpha) = (frac{Delta}{3} = frac{5.7 times 10^{-5}}{3})
= 1.90 x 10-5K-1