A bimetallic strip consists of metals X ...

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

it will bend towards the right

it will not bend but shrink

it will bend towards the left

it will neither bend or shrink.

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The correct Answer is:

Metal X has higher coefficient of expansion then Y. When strip is placed on cold water, X decreases its length much faster than Y, and it also cools faster. So, whole system has a tendency to bend towards left side.

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