Question: A rod of some material 0.50 m long elongates 0.40 mm on heating from 50C to 151C. What is the value of the linear coefficient

A rod of some material 0.50 m long elongates 0.40 mm on heating from 50°C to 151°C. What is the value of the linear coefficient of thermal expansion for this material?

(A) 5.30 ( 10-6 (°C)-1

(B) 7.92 ( 10-6 (°C) -1

(D) 1.24 ( 10-6 (°C) -1

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