Bimetallic strip is made up of

Metals with different linear expansion coefficient

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Metals with same linear expansion coefficient

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Metals with same superficial expansion coefficient

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Metals with different length

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Solution

The correct option is A Metals with different linear expansion coefficient
A bimetallic strip is used to convert temperature change into mechanical displacement. The strips consists of the strips of different metals which expand at different rates as they are heated, different metals are with different linear coefficient of expansion.

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