A bimetallic strip is made of aluminium ...

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

remains strsaight

get twisted

will bend with aluminium on concave side

will bend with steel on concave side

Text Solution

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The correct Answer is:

As `alpha_(Al) gt alpha_("steel")` aluminium will expand more. So it should have large radius of curvature. Hence, aluminium will be on convex side.

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