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In figure which strip brass or steel have higher coefficient of linear expansion.

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In figure which strip brass or steel have higher coefficient of linear expansion.
image
A. brass strip
B. steel strip
C. both strips has same coefficient of linear expansion
D. cannot be decided from given data
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Correct Answer - A
As the coeffiecient of thermal expansion of the brass is greater than steel. Hence, the length of brass strip will be more than steel strip. Therefore, brass strip will be on convex side.
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