A metal rod has a length of 100cm at 200°C. At what t...
A metal rod has a length of 100cm at 200°C. At what temperature will its length be 99.4cm. If the linear expansivity of the material of the rod is 2 × 10−5C−1
3000C
2000C
1000C
−1000C
Correct answer is D
L1 = 100cm, T1 = 200°C
L2 = 99.4cm, T2 = ?
α 2 × 10−5 C−1
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