Steel wire of length L' at 40°C is suspended from the ceiling and then a mass 'm' is hung from its free end. The wire is cooled down from 40°C to 30° C to regain its original length 'L'. The coefficient of linear thermal expansion of the steel is 10C, Young's modulus of steel is 10" N/m² and radius of the wire is 1 mm.

Steel wire of length L' at 40°C is suspended from the ceiling and then a mass 'm' is hung from its free end. The wire is cooled down from 40°C to 30° C to regain its original length 'L'. The coefficient of linear thermal expansion of the steel is 10C, Young's modulus of steel is 10" N/m² and radius of the wire is 1 mm.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter19: Temperature, Thermal Expansion And Gas Laws

Section: Chapter Questions

Problem 79PQ

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