Question

A bimetallic strip consists of copper and steel strips. On heating the strip bends
(A) With copper on concave side
(B) With copper on convex side
(C) With steel on convex side
(D) Does not expand​

Answer 1

Answer:

(b)

Explanation:

as the copper is a better conductor of heat and expands more than the steel

so it will bend outwards from the steel and will be on the convex side

Answer 2

Explanation:

with steel with the convex side