Two indentical recrangular strips. One o...

Two indentical recrangular strips. One of copper and the other of steel, are rivetted together to from o bimetallic strip `(alpha_copper gtalpha_steel)`. On hearing. This strip will

Remains straight

Bend with copper on convex side

Bend with steel on convex side

Get twisted

Text Solution

Verified by Experts

When a bimetallic strip of different metals is heated, the strip bends due to unequal linear expansion of the two metals. The strip will bend with metal of greater `alpha` on the convex side i.e. outer side.

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