Statement I: A brass disc is just fitted in a hole in a ste…

Physics Thermometry, Thermal Expansion and Calorimetry Statement Based MCQ (Single Correct)

Statement I: A brass disc is just fitted in a hole in a steel plate. The system must be cooled to loosen the disc from the hole.

Statement II: The coefficient of linear expansion for brass is greater than the coefficient of linear expansion for steel.

In the light of the above statements, choose the most appropriate answer from the options given below

Both Statement I and Statement II are incorrect.

Statement I is correct but Statement II is incorrect.

Statement I is incorrect but Statement II is correct.

Both Statement I and Statement II are correct.

Text Solution

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The correct answer is:

Both Statement I and Statement II are correct. Linear expansion for brass is greater than the linear expansion for steel . On cooling, the disc shrinks to a greater extent than the hole and hence it will get loose.

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