A bimetallic strip is made of aluminium and steel (alpha_(Al)gtalpha_("steel")). On heating, the strip will

A bimetallic strip is made of aluminium and steel (alpha_(Al)gtalpha_(

1.	A bimetallic strip is made of aluminium and steel (alpha_(Al)gtalpha_("steel")). On heating, the strip will
Answer» remain straight. get TWISTED. will bend with ALUMINIUM on CONCAVE side. will bend with steel on concave side. SOLUTION :As `alpha_(Al)gtalpha_("steel")`, length of aluminium strip increases. Hence, its radius will bend with steel on concave side.