If a 1 km long steel rail suffers 50°C increase in temperature then b – McqOptions

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1.	If a 1 km long steel rail suffers 50°C increase in temperature then by how much will be it's length in increase (in m)? (Coefficient of linear expansion for steel is 1.2 x 10-5 K-1)
A.	0.24
B.	0.06
C.	0.6
D.	0.024
Answer» D. 0.024

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