If the cubic expansivity of brass between 27 o C and 100 o C is
PHYSICS
WAEC 1998
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
Correct Answer: B. 1.90 x 10-5K-1
Explanation
\(\alpha\) = \(\frac{\Delta}{3} = \frac{5.7 \times 10^{-5}}{3}\)
= 1.90 x 10-5K-1
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