A bimetallic strip is made of aluminum & steel (alpha_(AI) gtalpha_("steel")) . On heating the strip will

A bimetallic strip is made of aluminum & steel (alpha_(AI) gtalpha_("s

1.	A bimetallic strip is made of aluminum & steel (alpha_(AI) gtalpha_("steel")) . On heating the strip will
Answer» REMAIN straight get twisted will BEND with aluminum on concave side will bend with STEEL on concave side. Solution :Give `alpha_(AI) gt alpha_("steel")` Al steel so on heating aluminum strip will expander more than that of steel strip. So aluminum strip will bead more on convex side & steel strip on concave side.