What should be the lengths of a steel rod and a copper rod if the steel rod is 6 cm longer at any temperature? α s t ee l = 1.1 × 1 0 − 5 ∘ C − 1 ; α co pp er = 1.7 × 1 0 − 5 ∘ C − 1 .

Question

What should be the lengths of a steel rod and a copper rod if the steel rod is 6 cm longer at any temperature? α s t ee l ​ = 1.1 × 1 0 − 5 ∘ C − 1 ; α co pp er ​ = 1.7 × 1 0 − 5 ∘ C − 1 .

TestHub · Accepted Answer

A fixed length difference requires L s ​ α s ​ = L c ​ α c ​ Also L s ​ − L c ​ = 6 cm With printed coefficients, L s ​ = 17 cm and L c ​ = 11 cm

Physics - Heat & Thermo Question with Solution | TestHub

Options:

Doubts & Discussion