A metal rod of length 100cm is heated through 100 o C, calculate the change
PHYSICS
WAEC 2003
A metal rod of length 100cm is heated through 100oC, calculate the change in length of the rod [linear expansivity of the material of the rod is 3 x 10-6K-1]
- A. 4mm
- B. 3mm
- C. 2mm
- D. 1mm
Correct Answer: B. 3mm
Explanation
\(I_2 - I_1 = I_1, \theta\alpha - 1 \times 100 \times 3 \times 10^{-5}\)
= 3 x 10-3m
= 3mm
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