Properties Of Solids And Liquids Question 418

Question: A steel rod of length 1 m is heated from 25C to 75C keeping its length constant. The longitudinal strain developed in the rod is (Given: Coefficient of linear expansion of steel =12×106/C )

Options:

A) 6×106

B) 6×105

C) 6×104

D) zero

Show Answer

Answer:

Correct Answer: B

Solution:

[c] Strain developed ε=αΔT=(12×106)(50)=6×104 .

Strain will be negative, as the rod is in a compressed state.



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