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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 1 > Chapter 15 - Thermodynamics > A thin rod of negligible mass and area of cross-section 2∗10^−5 m^2 , suspended vertically from one end, has a length of 0.5 m at 200^∘ C. The rod is cooled to 0^∘C, but length is kept same by attaching a mass at the lower end. The value of this mass is (Young’s modulus = 10^11 N/m^2 , Coefficient of linear expansion 10^−5 K^−1 ).

A thin rod of negligible mass and area of cross-section 2∗10^−5 m^2 , suspended vertically from one end, has a length of 0.5 m at 200^∘ C. The rod is cooled to 0^∘C, but length is kept same by attaching a mass at the lower end. The value of this mass is (Young’s modulus = 10^11 N/m^2 , Coefficient of linear expansion 10^−5 K^−1 ).

A thin rod of negligible mass and area of cross-section 2∗10^−5 m^2 but length is kept same by attaching a mass at the lower end. The value of this mass is (Young's modulus = 10^11 N/m^2 Coefficient of linear expansion 10^−5 K^−1 ). has a length of 0.5 m at 200^∘ C. The rod is cooled to 0^∘C suspended vertically from one end