Properties Of Solids And Liquids Question 495

Question: A brass disc fits simply in a hole of a steel plate. The disc from the hole can be loosened if the system [UPSEAT 2001]

Options:

A) First heated then cooled

B) First cooled then heated

C) Is heated

D) Is cooled

Show Answer

Answer:

Correct Answer: D

Solution:

Since, the coefficient of linear expansion of brass is greater than that of steel. On cooling, the brass contracts more, so, it get loosened.



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