Questions

A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown. The metal X has a higher coefficient of expansion compared to that for metal Y. When bimetallic strip is placed in a cold bath

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It will bend towards the right

It will bend towards the left

It will not bend but shrink

It will neither bend nor shrink

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detailed solution

Correct option is B

As x has higher expansion coefficient it contracts more on cooling.

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Similar Questions

Two thin metal strips each of 2mm thick, one of brass and the other of iron are fastened together parallel to each other, to form a bimetallic strip. If the strips are of equal length at 0°c . The radius of the arc formed by the bimetallic strip when heated to C is (Coefficient of linear expansion of brass = $19 \times 10^{- 6} /^{\circ} C$ and of iron = $12 \times 10^{- 6} /^{\circ} C$ )