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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A rod of length 2 m is at a temperature of 20∘ C. find the free expansion of the rod, if the temperature is increased to 50∘C, then find stress produced when the rod is (i) fully prevented to expand, (ii) permitted to expand by 0.4mm. Y=2×10^11N/m2,α=15×10^−6/∘C.

A rod of length 2 m is at a temperature of 20∘ C. find the free expansion of the rod, if the temperature is increased to 50∘C, then find stress produced when the rod is (i) fully prevented to expand, (ii) permitted to expand by 0.4mm. Y=2×10^11N/m2,α=15×10^−6/∘C.

(ii) permitted to expand by 0.4mm. Y=2×10^11N/m2 A rod of length 2 m is at a temperature of 20∘ C. find the free expansion of the rod if the temperature is increased to 50∘C then find stress produced when the rod is (i) fully prevented to expand α=15×10^−6/∘C.