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

  • question_answer
    A cylindrical metal rod of length L0 is shaped into a ring with a small gap as shown. On heating the system

    A)            x decreases, r and d increase

    B)            x and r increase, d decreases

    C)            x, r and d all increase

    D)            Data insufficient to arrive at a conclusion

    Correct Answer: C

    Solution :

               On heating the system; x, r, d all increases, since the expansion of isotropic solids is similar to true photographic enlargement.


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