If a bimetallic strip is heated then when the strip is vertical

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If a bimetallic strip is heated then when the strip is vertical

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higher $' α'$ material gains concave shape

higher $' α'$ material loss concave shape

higher $' α'$ material gains convex shape

higher $' α'$ material loss convex shape

answer is C.

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Detailed Solution

material with higher coefficient of linear expansion , expands more than the other one, hence it takes convex shape

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