Question

A bimetallic strip of brass and iron is straight at room temperature. When this bimetallic strip is heated it bends, such that:
(a) iron takes the outer surface of bend
(b) brass takes the outer surface of bend
(c) the bimetallic strip does not bend
(d) none of these​

Answer 1

Answer:

c is the right answer

Explanation:

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Answer 2

brass sticks the outer surface of bend

Explanation:

Since coefficient of linear expansion of brass is more than that of iron therefore brass will expand more and expansion will be such that convex side will be brass.