Physics > 2007 > 36
JAMB UTME
A blacksmith heated a metal whose cubic expansivity is 6.3 x 10-6K-1. The area expansivity is
A.
6.3 x 10-6K-1
B.
4.2 x 10-6K-1
C.
2.1 x 10-6K-1
D.
2.0 x 10-6K-1
Answer: B
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