JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Thermal Expansion

  • question_answer
    When a rod is heated but prevented from expanding, the stress developed is independent of [EAMCET 1997]

    A)            Material of the rod            

    B)            Rise in temperature

    C)            Length of rod                       

    D)            None of above

    Correct Answer: C

    Solution :

               Stress \[=Y\alpha \Delta \theta \]; hence it is independent of length.


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