If a bimetallic strip is heated it will...

If a bimetallic strip is heated it will

bend towards the metal with lower themal expansion coefficient.

bend towards the metal with higher thermal expansion coefficient.

twist itself into helix.

have no bending.

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The correct Answer is:

In bimetallic strips the two melts have different thermal expansion coefficient. Hence on heating it bents towards the metal with lower thermal expansion coefficient

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