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Thermal Expansion of Solids

When a bimeta...

Question

When a bimetallic strip is heated, it-

A

Does not bend at all

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B

Gets twisted in the form of an helix

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C

Bend in the form of an arc with the more expandable metal outside

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D

Bends in the form of an arc with the more expandable metal inside

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Solution

The correct option is C
Bend in the form of an arc with the more expandable metal outside

A bimetallic strip on being heated bends in the form of an arc with more expandable metal (A) outside, as shown in the figure below.

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