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  5. Thermal Properties of Matter / द्रव्य के तापीय गुण

11th Class Physics Thermal Properties of Matter / द्रव्य के तापीय गुण Question Bank Thermal Properties of Matter Conceptual Problems

  • question_answer
    A brass disc fits snugly in a hole in a steel plate. Should we heat or cool the system to loosen the disc from the hole?

    Answer:

                    \[\alpha \] for brass is greater than that for steel. On cooling, the disc shrinks to a greater extent than the hole, and hence the disc would get loosened.


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