A blacksmith heated a metal whose cubic expansivity is 6.3 x 10 -6 K -1
PHYSICS
JAMB 2007
A blacksmith heated a metal whose cubic expansivity is 6.3 x 10-6K-1. The areal expansivity is
- A) 2.0 x 10-6K-1
- B) 2.1 x 10-6K-1
- C) 4.2 x 10-6K-1
- D) 6.3 x 10-6K-1
Correct Answer: C) 4.2 x 10-6K-1
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