JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A bimetallic strip is made of aluminium and steel

\left(\alpha_{{Al}}>\alpha_{\text {st }}\right)

. On heating, the strip will

View answer and explanation

Correct option: D

will bend with steel on concave side.

Option D (will bend with steel on concave side) is correct because aluminum has a higher coefficient of thermal expansion than steel, so it expands more and forms the convex side.

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