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Posted by on Monday, July 23, 2012 at 11:54pm.

Two cylindrical rods are made of the same material and have the same length but one is hollow and other is solid. Both are heated to same increase in temperature. Which rod expands more?

From my understanding of linear thermal expansion, linear thermal expansion only depends on the expansion coefficient, the length of the material, and the change in temperature. Shouldn't the rods expand equally?

  • Physics - , Tuesday, July 24, 2012 at 1:55am

    yes. They expand equally

  • Physics - , Tuesday, October 4, 2016 at 5:24am

    As we know both rods have same value of coefficient ,temperature and length so there will be same expansion in both

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