JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Topic Test - Thermometry, Thermal Expansion and Calorimetry (3-5-21)

  • question_answer
    A cylindrical metal rod of length \[{{L}_{0}}\] 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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